Don't delete a suggestion when there is no suggestion selected

pkg/gui/controllers/suggestions_controller.go

@@ -49,6 +49,7 @@ func (self *SuggestionsController) GetKeybindings(opts types.KeybindingsOpts) []
 			Handler: func() error {
 				return self.context().State.OnDeleteSuggestion()
 			},
+			GetDisabledReason: self.require(self.singleItemSelected()),
 		},
 		{
 			Keys: opts.GetKeys(opts.Config.Universal.Edit),

pkg/integration/tests/shell_commands/delete_suggestion_when_none_selected.go

@@ -0,0 +1,36 @@
+package shell_commands
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var DeleteSuggestionWhenNoneSelected = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Press the delete key again after deleting the last entry in the shell command history",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupRepo:    func(shell *Shell) {},
+	SetupConfig:  func(cfg *config.AppConfig) {},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.GlobalPress(keys.Universal.ExecuteShellCommand)
+		t.ExpectPopup().Prompt().
+			Title(Equals("Shell command:")).
+			Type("echo 1").
+			Confirm()
+
+		// Deleting the only suggestion leaves the list focused but empty, so
+		// there is nothing for a second delete to act on.
+		t.GlobalPress(keys.Universal.ExecuteShellCommand)
+		t.ExpectPopup().Prompt().
+			Title(Equals("Shell command:")).
+			SuggestionLines(Contains("echo 1")).
+			DeleteSuggestion(Contains("echo 1"))
+
+		t.Views().Suggestions().
+			IsFocused().
+			IsEmpty().
+			Press(keys.Universal.Remove)
+
+		t.ExpectToast(Equals("Disabled: No item selected"))
+	},
+})

pkg/integration/tests/test_list.go

@@ -411,6 +411,7 @@ var tests = []*components.IntegrationTest{
 	shell_commands.BasicShellCommand,
 	shell_commands.ComplexShellCommand,
 	shell_commands.DeleteFromHistory,
+	shell_commands.DeleteSuggestionWhenNoneSelected,
 	shell_commands.EditHistory,
 	shell_commands.History,
 	shell_commands.OmitFromHistory,