diff --git a/api/queries_pr.go b/api/queries_pr.go
index 1d394e864..525418a11 100644
--- a/api/queries_pr.go
+++ b/api/queries_pr.go
@@ -85,25 +85,15 @@ type PullRequest struct {
 
 	Assignees      Assignees
 	AssignedActors AssignedActors
-	// AssignedActorsUsed is a GIGANTIC hack to carry around whether we expected AssignedActors to be requested
-	// on this PR. This is required because the Feature Detection of support for AssignedActors occurs inside the
-	// PR Finder, but knowledge of support is required at the command level. However, we can't easily construct
-	// the feature detector at the command level because it needs knowledge of the BaseRepo, which is only available
-	// inside the PR Finder. This is bad and we should feel bad.
-	//
-	// The right solution is to extract argument parsing from the PR Finder into each command, so that we have access
-	// to the BaseRepo and can construct the feature detector there. This is what happens in the issue commands with
-	// `shared.ParseIssueFromArg`.
-	AssignedActorsUsed bool
-	Labels             Labels
-	ProjectCards       ProjectCards
-	ProjectItems       ProjectItems
-	Milestone          *Milestone
-	Comments           Comments
-	ReactionGroups     ReactionGroups
-	Reviews            PullRequestReviews
-	LatestReviews      PullRequestReviews
-	ReviewRequests     ReviewRequests
+	Labels         Labels
+	ProjectCards   ProjectCards
+	ProjectItems   ProjectItems
+	Milestone      *Milestone
+	Comments       Comments
+	ReactionGroups ReactionGroups
+	Reviews        PullRequestReviews
+	LatestReviews  PullRequestReviews
+	ReviewRequests ReviewRequests
 
 	ClosingIssuesReferences ClosingIssuesReferences
 }
diff --git a/pkg/cmd/issue/edit/edit_test.go b/pkg/cmd/issue/edit/edit_test.go
index d14b2f462..caf99df58 100644
--- a/pkg/cmd/issue/edit/edit_test.go
+++ b/pkg/cmd/issue/edit/edit_test.go
@@ -263,12 +263,12 @@ func TestNewCmdEdit(t *testing.T) {
 		},
 		{
 			name:  "argument is a URL",
-			input: "https://github.com/cli/cli/issues/23",
+			input: "https://example.com/cli/cli/issues/23",
 			output: EditOptions{
 				IssueNumbers: []int{23},
 				Interactive:  true,
 			},
-			expectedBaseRepo: ghrepo.New("cli", "cli"),
+			expectedBaseRepo: ghrepo.NewWithHost("cli", "cli", "example.com"),
 			wantsErr:         false,
 		},
 		{
diff --git a/pkg/cmd/pr/edit/edit.go b/pkg/cmd/pr/edit/edit.go
index becbfce47..c01364d24 100644
--- a/pkg/cmd/pr/edit/edit.go
+++ b/pkg/cmd/pr/edit/edit.go
@@ -3,6 +3,7 @@ package edit
 import (
 	"fmt"
 	"net/http"
+	"time"
 
 	"github.com/MakeNowJust/heredoc"
 	"github.com/cli/cli/v2/api"
@@ -81,12 +82,28 @@ func NewCmdEdit(f *cmdutil.Factory, runF func(*EditOptions) error) *cobra.Comman
 		Args: cobra.MaximumNArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			opts.Finder = shared.NewFinder(f)
+
+			// support `-R, --repo` override
 			opts.BaseRepo = f.BaseRepo
 
 			if len(args) > 0 {
 				opts.SelectorArg = args[0]
 			}
 
+			if opts.SelectorArg != "" {
+				// If a URL is provided, we need to parse it to override the
+				// base repository, especially the hostname part. That's because
+				// we need a feature detector down in this command, and that
+				// needs to know the API host. If the command is run outside of
+				// a git repo, we cannot instantiate the detector unless we have
+				// already parsed the URL.
+				if baseRepo, _, err := shared.ParseURL(opts.SelectorArg); err == nil {
+					opts.BaseRepo = func() (ghrepo.Interface, error) {
+						return baseRepo, nil
+					}
+				}
+			}
+
 			flags := cmd.Flags()
 
 			bodyProvided := flags.Changed("body")
@@ -203,17 +220,38 @@ func NewCmdEdit(f *cmdutil.Factory, runF func(*EditOptions) error) *cobra.Comman
 }
 
 func editRun(opts *EditOptions) error {
-	findOptions := shared.FindOptions{
-		Selector: opts.SelectorArg,
-		Fields:   []string{"id", "url", "title", "body", "baseRefName", "reviewRequests", "labels", "projectCards", "projectItems", "milestone", "assignees"},
-		Detector: opts.Detector,
-	}
-
 	httpClient, err := opts.HttpClient()
 	if err != nil {
 		return err
 	}
 
+	if opts.Detector == nil {
+		baseRepo, err := opts.BaseRepo()
+		if err != nil {
+			return err
+		}
+
+		cachedClient := api.NewCachedHTTPClient(httpClient, time.Hour*24)
+		opts.Detector = fd.NewDetector(cachedClient, baseRepo.RepoHost())
+	}
+
+	findOptions := shared.FindOptions{
+		Selector: opts.SelectorArg,
+		Fields:   []string{"id", "url", "title", "body", "baseRefName", "reviewRequests", "labels", "projectCards", "projectItems", "milestone"},
+		Detector: opts.Detector,
+	}
+
+	issueFeatures, err := opts.Detector.IssueFeatures()
+	if err != nil {
+		return err
+	}
+
+	if issueFeatures.ActorIsAssignable {
+		findOptions.Fields = append(findOptions.Fields, "assignedActors")
+	} else {
+		findOptions.Fields = append(findOptions.Fields, "assignees")
+	}
+
 	pr, repo, err := opts.Finder.Find(findOptions)
 	if err != nil {
 		return err
@@ -225,7 +263,7 @@ func editRun(opts *EditOptions) error {
 	editable.Body.Default = pr.Body
 	editable.Base.Default = pr.BaseRefName
 	editable.Reviewers.Default = pr.ReviewRequests.Logins()
-	if pr.AssignedActorsUsed {
+	if issueFeatures.ActorIsAssignable {
 		editable.Assignees.ActorAssignees = true
 		editable.Assignees.Default = pr.AssignedActors.DisplayNames()
 		editable.Assignees.DefaultLogins = pr.AssignedActors.Logins()
diff --git a/pkg/cmd/pr/edit/edit_test.go b/pkg/cmd/pr/edit/edit_test.go
index 374625912..bb468a307 100644
--- a/pkg/cmd/pr/edit/edit_test.go
+++ b/pkg/cmd/pr/edit/edit_test.go
@@ -26,11 +26,12 @@ func TestNewCmdEdit(t *testing.T) {
 	require.NoError(t, err)
 
 	tests := []struct {
-		name     string
-		input    string
-		stdin    string
-		output   EditOptions
-		wantsErr bool
+		name             string
+		input            string
+		stdin            string
+		output           EditOptions
+		expectedBaseRepo ghrepo.Interface
+		wantsErr         bool
 	}{
 		{
 			name:  "no argument",
@@ -47,6 +48,16 @@ func TestNewCmdEdit(t *testing.T) {
 			output:   EditOptions{},
 			wantsErr: true,
 		},
+		{
+			name:  "URL argument",
+			input: "https://example.com/cli/cli/pull/23",
+			output: EditOptions{
+				SelectorArg: "https://example.com/cli/cli/pull/23",
+				Interactive: true,
+			},
+			expectedBaseRepo: ghrepo.NewWithHost("cli", "cli", "example.com"),
+			wantsErr:         false,
+		},
 		{
 			name:  "pull request number argument",
 			input: "23",
@@ -326,6 +337,15 @@ func TestNewCmdEdit(t *testing.T) {
 			assert.Equal(t, tt.output.SelectorArg, gotOpts.SelectorArg)
 			assert.Equal(t, tt.output.Interactive, gotOpts.Interactive)
 			assert.Equal(t, tt.output.Editable, gotOpts.Editable)
+			if tt.expectedBaseRepo != nil {
+				baseRepo, err := gotOpts.BaseRepo()
+				require.NoError(t, err)
+				require.True(
+					t,
+					ghrepo.IsSame(tt.expectedBaseRepo, baseRepo),
+					"expected base repo %+v, got %+v", tt.expectedBaseRepo, baseRepo,
+				)
+			}
 		})
 	}
 }
@@ -344,8 +364,7 @@ func Test_editRun(t *testing.T) {
 				Detector:    &fd.EnabledDetectorMock{},
 				SelectorArg: "123",
 				Finder: shared.NewMockFinder("123", &api.PullRequest{
-					URL:                "https://github.com/OWNER/REPO/pull/123",
-					AssignedActorsUsed: true,
+					URL: "https://github.com/OWNER/REPO/pull/123",
 				}, ghrepo.New("OWNER", "REPO")),
 				Interactive: false,
 				Editable: shared.Editable{
@@ -408,8 +427,7 @@ func Test_editRun(t *testing.T) {
 				Detector:    &fd.EnabledDetectorMock{},
 				SelectorArg: "123",
 				Finder: shared.NewMockFinder("123", &api.PullRequest{
-					URL:                "https://github.com/OWNER/REPO/pull/123",
-					AssignedActorsUsed: true,
+					URL: "https://github.com/OWNER/REPO/pull/123",
 				}, ghrepo.New("OWNER", "REPO")),
 				Interactive: false,
 				Editable: shared.Editable{
@@ -466,8 +484,7 @@ func Test_editRun(t *testing.T) {
 				Detector:    &fd.EnabledDetectorMock{},
 				SelectorArg: "123",
 				Finder: shared.NewMockFinder("123", &api.PullRequest{
-					URL:                "https://github.com/OWNER/REPO/pull/123",
-					AssignedActorsUsed: true,
+					URL: "https://github.com/OWNER/REPO/pull/123",
 				}, ghrepo.New("OWNER", "REPO")),
 				Interactive: false,
 				Editable: shared.Editable{
@@ -529,8 +546,7 @@ func Test_editRun(t *testing.T) {
 				Detector:    &fd.EnabledDetectorMock{},
 				SelectorArg: "123",
 				Finder: shared.NewMockFinder("123", &api.PullRequest{
-					URL:                "https://github.com/OWNER/REPO/pull/123",
-					AssignedActorsUsed: true,
+					URL: "https://github.com/OWNER/REPO/pull/123",
 				}, ghrepo.New("OWNER", "REPO")),
 				Interactive: true,
 				Surveyor: testSurveyor{
@@ -576,8 +592,7 @@ func Test_editRun(t *testing.T) {
 				Detector:    &fd.EnabledDetectorMock{},
 				SelectorArg: "123",
 				Finder: shared.NewMockFinder("123", &api.PullRequest{
-					URL:                "https://github.com/OWNER/REPO/pull/123",
-					AssignedActorsUsed: true,
+					URL: "https://github.com/OWNER/REPO/pull/123",
 				}, ghrepo.New("OWNER", "REPO")),
 				Interactive: true,
 				Surveyor: testSurveyor{
@@ -620,8 +635,7 @@ func Test_editRun(t *testing.T) {
 				Detector:    &fd.EnabledDetectorMock{},
 				SelectorArg: "123",
 				Finder: shared.NewMockFinder("123", &api.PullRequest{
-					URL:                "https://github.com/OWNER/REPO/pull/123",
-					AssignedActorsUsed: true,
+					URL: "https://github.com/OWNER/REPO/pull/123",
 				}, ghrepo.New("OWNER", "REPO")),
 				Interactive: true,
 				Surveyor: testSurveyor{
@@ -667,8 +681,7 @@ func Test_editRun(t *testing.T) {
 				Detector:    &fd.EnabledDetectorMock{},
 				SelectorArg: "123",
 				Finder: shared.NewMockFinder("123", &api.PullRequest{
-					URL:                "https://github.com/OWNER/REPO/pull/123",
-					AssignedActorsUsed: true,
+					URL: "https://github.com/OWNER/REPO/pull/123",
 					AssignedActors: api.AssignedActors{
 						Nodes: []api.Actor{
 							{
diff --git a/pkg/cmd/pr/shared/finder.go b/pkg/cmd/pr/shared/finder.go
index a19c69669..df8cc0fd4 100644
--- a/pkg/cmd/pr/shared/finder.go
+++ b/pkg/cmd/pr/shared/finder.go
@@ -112,7 +112,7 @@ func (f *finder) Find(opts FindOptions) (*api.PullRequest, ghrepo.Interface, err
 		return nil, nil, errors.New("Find error: no fields specified")
 	}
 
-	if repo, prNumber, err := f.parseURL(opts.Selector); err == nil {
+	if repo, prNumber, err := ParseURL(opts.Selector); err == nil {
 		f.prNumber = prNumber
 		f.baseRefRepo = repo
 	}
@@ -242,33 +242,6 @@ func (f *finder) Find(opts FindOptions) (*api.PullRequest, ghrepo.Interface, err
 		}
 	}
 
-	// Ok this is super, super horrible so bear with me.
-	// The `assignees` field on a Pull Request exposes users that are assigned. It is also possible for bots to be
-	// assigned, but they only appear under the `assignedActors` field. Ideally, the caller of `Find` would determine
-	// the correct field to use based on the `fd.Detector` that is passed in, but they can't construct a detector
-	// because the BaseRepo is only determined within this function. The more correct solution is to do what I did with
-	// the issue commands and decouple argument parsing from API lookup. See PR #10811 for example.
-	var actorAssigneesUsed bool
-	if fields.Contains("assignees") {
-		if opts.Detector == nil {
-			cachedClient := api.NewCachedHTTPClient(httpClient, time.Hour*24)
-			opts.Detector = fd.NewDetector(cachedClient, f.baseRefRepo.RepoHost())
-		}
-
-		issueFeatures, err := opts.Detector.IssueFeatures()
-		if err != nil {
-			return nil, nil, fmt.Errorf("error detecting issue features: %v", err)
-		}
-
-		// If actors are assignable on this host then we additionally request the `assignedActors` field.
-		// Note that we don't remove the `assignees` field because some commands (`pr view`) do not display actor
-		// assignees yet, so we have to have both sets of data.
-		if issueFeatures.ActorIsAssignable {
-			fields.Add("assignedActors")
-			actorAssigneesUsed = true
-		}
-	}
-
 	var pr *api.PullRequest
 	if f.prNumber > 0 {
 		// If we have a PR number, let's look it up
@@ -324,16 +297,14 @@ func (f *finder) Find(opts FindOptions) (*api.PullRequest, ghrepo.Interface, err
 		})
 	}
 
-	if actorAssigneesUsed {
-		pr.AssignedActorsUsed = true
-	}
-
 	return pr, f.baseRefRepo, g.Wait()
 }
 
 var pullURLRE = regexp.MustCompile(`^/([^/]+)/([^/]+)/pull/(\d+)`)
 
-func (f *finder) parseURL(prURL string) (ghrepo.Interface, int, error) {
+// ParseURL parses a pull request URL and returns the repository and pull
+// request number.
+func ParseURL(prURL string) (ghrepo.Interface, int, error) {
 	if prURL == "" {
 		return nil, 0, fmt.Errorf("invalid URL: %q", prURL)
 	}
diff --git a/pkg/cmd/pr/shared/finder_test.go b/pkg/cmd/pr/shared/finder_test.go
index 0fd96e09b..0f6da5a6e 100644
--- a/pkg/cmd/pr/shared/finder_test.go
+++ b/pkg/cmd/pr/shared/finder_test.go
@@ -9,12 +9,75 @@ import (
 
 	ghContext "github.com/cli/cli/v2/context"
 	"github.com/cli/cli/v2/git"
-	fd "github.com/cli/cli/v2/internal/featuredetection"
 	"github.com/cli/cli/v2/internal/ghrepo"
 	"github.com/cli/cli/v2/pkg/httpmock"
 	"github.com/stretchr/testify/require"
 )
 
+func TestParseURL(t *testing.T) {
+	tests := []struct {
+		name     string
+		arg      string
+		wantRepo ghrepo.Interface
+		wantNum  int
+		wantErr  string
+	}{
+		{
+			name:     "valid HTTPS URL",
+			arg:      "https://example.com/owner/repo/pull/123",
+			wantRepo: ghrepo.NewWithHost("owner", "repo", "example.com"),
+			wantNum:  123,
+		},
+		{
+			name:     "valid HTTP URL",
+			arg:      "http://example.com/owner/repo/pull/123",
+			wantRepo: ghrepo.NewWithHost("owner", "repo", "example.com"),
+			wantNum:  123,
+		},
+		{
+			name:    "empty URL",
+			wantErr: "invalid URL: \"\"",
+		},
+		{
+			name:    "invalid scheme",
+			arg:     "ftp://github.com/owner/repo/pull/123",
+			wantErr: "invalid scheme: ftp",
+		},
+		{
+			name:    "incorrect path",
+			arg:     "https://github.com/owner/repo/issues/123",
+			wantErr: "not a pull request URL: https://github.com/owner/repo/issues/123",
+		},
+		{
+			name:    "no PR number",
+			arg:     "https://github.com/owner/repo/pull/",
+			wantErr: "not a pull request URL: https://github.com/owner/repo/pull/",
+		},
+		{
+			name:    "invalid PR number",
+			arg:     "https://github.com/owner/repo/pull/foo",
+			wantErr: "not a pull request URL: https://github.com/owner/repo/pull/foo",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			repo, num, err := ParseURL(tt.arg)
+
+			if tt.wantErr != "" {
+				require.Error(t, err)
+				require.Equal(t, tt.wantErr, err.Error())
+				return
+			}
+
+			require.NoError(t, err)
+			require.Equal(t, tt.wantNum, num)
+			require.NotNil(t, repo)
+			require.True(t, ghrepo.IsSame(tt.wantRepo, repo))
+		})
+	}
+}
+
 type args struct {
 	baseRepoFn      func() (ghrepo.Interface, error)
 	branchFn        func() (string, error)
@@ -706,81 +769,6 @@ func TestFind(t *testing.T) {
 	}
 }
 
-func TestFindAssignableActors(t *testing.T) {
-	t.Run("given actors are not assignable, do nothing special", func(t *testing.T) {
-		reg := &httpmock.Registry{}
-		defer reg.Verify(t)
-
-		// Ensure we never request assignedActors
-		reg.Exclude(t, httpmock.GraphQL(`assignedActors`))
-		reg.Register(
-			httpmock.GraphQL(`query PullRequestByNumber\b`),
-			httpmock.StringResponse(`{"data":{"repository":{
-						"pullRequest":{"number":13}
-					}}}`))
-
-		f := finder{
-			httpClient: func() (*http.Client, error) {
-				return &http.Client{Transport: reg}, nil
-			},
-		}
-
-		pr, _, err := f.Find(FindOptions{
-			Detector: &fd.DisabledDetectorMock{},
-			Fields:   []string{"assignees"},
-			Selector: "https://github.com/cli/cli/pull/13",
-		})
-		require.NoError(t, err)
-
-		require.False(t, pr.AssignedActorsUsed, "expected PR not to have assigned actors used")
-	})
-
-	t.Run("given actors are assignable, request assignedActors and indicate that on the returned PR", func(t *testing.T) {
-		reg := &httpmock.Registry{}
-		defer reg.Verify(t)
-
-		// Ensure that we only respond if assignedActors is requested
-		reg.Register(
-			httpmock.GraphQL(`assignedActors`),
-			httpmock.StringResponse(`{"data":{"repository":{
-						"pullRequest":{
-						    "number":13, 
-							"assignedActors": {
-								"nodes": [
-									{
-										"id": "HUBOTID",
-										"login": "hubot",
-										"__typename": "Bot"
-									},
-									{
-										"id": "MONAID",
-										"login": "MonaLisa",
-										"name": "Mona Display Name",
-										"__typename": "User"
-									}
-								],
-								"totalCount": 2
-							}}
-					}}}`))
-
-		f := finder{
-			httpClient: func() (*http.Client, error) {
-				return &http.Client{Transport: reg}, nil
-			},
-		}
-
-		pr, _, err := f.Find(FindOptions{
-			Detector: &fd.EnabledDetectorMock{},
-			Fields:   []string{"assignees"},
-			Selector: "https://github.com/cli/cli/pull/13",
-		})
-		require.NoError(t, err)
-
-		require.Equal(t, []string{"hubot", "MonaLisa"}, pr.AssignedActors.Logins())
-		require.True(t, pr.AssignedActorsUsed, "expected PR to have assigned actors used")
-	})
-}
-
 func stubBranchConfig(branchConfig git.BranchConfig, err error) func(context.Context, string) (git.BranchConfig, error) {
 	return func(_ context.Context, branch string) (git.BranchConfig, error) {
 		return branchConfig, err