Add test demonstrating the current (undesired) behavior

pkg/integration/tests/interactive_rebase/dont_show_branch_heads_for_todo_items.go

@@ -0,0 +1,56 @@
+package interactive_rebase
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var DontShowBranchHeadsForTodoItems = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Check that branch heads are shown for normal commits during interactive rebase, but not for todo items",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	GitVersion:   AtLeast("2.38.0"),
+	SetupConfig: func(config *config.AppConfig) {
+		config.AppState.GitLogShowGraph = "never"
+	},
+	SetupRepo: func(shell *Shell) {
+		shell.
+			NewBranch("branch1").
+			CreateNCommits(2).
+			NewBranch("branch2").
+			CreateNCommitsStartingAt(4, 3).
+			NewBranch("branch3").
+			CreateNCommitsStartingAt(3, 7)
+
+		shell.SetConfig("rebase.updateRefs", "true")
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.Views().Commits().
+			Focus().
+			Lines(
+				Contains("CI commit 09"),
+				Contains("CI commit 08"),
+				Contains("CI commit 07"),
+				Contains("CI * commit 06"),
+				Contains("CI commit 05"),
+				Contains("CI commit 04"),
+				Contains("CI commit 03"),
+				Contains("CI * commit 02"),
+				Contains("CI commit 01"),
+			).
+			NavigateToLine(Contains("commit 04")).
+			Press(keys.Universal.Edit).
+			Lines(
+				Contains("pick").Contains("CI commit 09"),
+				Contains("pick").Contains("CI commit 08"),
+				Contains("pick").Contains("CI commit 07"),
+				Contains("update-ref").Contains("branch2"),
+				Contains("pick").Contains("CI * commit 06"), // the star is undesired here; it's confusing because of the update-ref right above
+				Contains("pick").Contains("CI commit 05"),
+				Contains("CI <-- YOU ARE HERE --- commit 04"),
+				Contains("CI commit 03"),
+				Contains("CI * commit 02"), // this star is fine though
+				Contains("CI commit 01"),
+			)
+	},
+})

pkg/integration/tests/test_list.go

@@ -162,6 +162,7 @@ var tests = []*components.IntegrationTest{
 	interactive_rebase.AmendHeadCommitDuringRebase,
 	interactive_rebase.AmendMerge,
 	interactive_rebase.AmendNonHeadCommitDuringRebase,
+	interactive_rebase.DontShowBranchHeadsForTodoItems,
 	interactive_rebase.DropTodoCommitWithUpdateRef,
 	interactive_rebase.DropWithCustomCommentChar,
 	interactive_rebase.EditFirstCommit,