Fix bezier editor handle mode undo history mismatch

editor/animation_bezier_editor.cpp

@@ -794,7 +794,7 @@ void AnimationBezierTrackEdit::_clear_selection() {
 
 void AnimationBezierTrackEdit::_change_selected_keys_handle_mode(Animation::HandleMode p_mode, bool p_auto) {
 	EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
-	undo_redo->create_action(TTR("Update Selected Key Handles"));
+	undo_redo->create_action(TTR("Update Selected Key Handles"), UndoRedo::MERGE_DISABLE, animation.ptr());
 	for (SelectionSet::Element *E = selection.back(); E; E = E->prev()) {
 		const IntPair track_key_pair = E->get();
 		undo_redo->add_undo_method(editor, "_bezier_track_set_key_handle_mode", animation.ptr(), track_key_pair.first, track_key_pair.second, animation->bezier_track_get_key_handle_mode(track_key_pair.first, track_key_pair.second), Animation::HANDLE_SET_MODE_NONE);

editor/animation_track_editor.cpp

@@ -305,7 +305,7 @@ bool AnimationTrackKeyEdit::_set(const StringName &p_name, const Variant &p_valu
 				const Variant &value = p_value;
 
 				setting = true;
-				undo_redo->create_action(TTR("Animation Change Keyframe Value"), UndoRedo::MERGE_ENDS);
+				undo_redo->create_action(TTR("Animation Change Keyframe Value"), UndoRedo::MERGE_ENDS, animation.ptr());
 				int prev_mode = animation->bezier_track_get_key_handle_mode(track, key);
 				Vector2 prev_in_handle = animation->bezier_track_get_key_in_handle(track, key);
 				Vector2 prev_out_handle = animation->bezier_track_get_key_out_handle(track, key);