### Godot version

4.0.rc

### System information

Any

### Issue description

If the RESET animation is generated at the same time as the Bezier track is generated, the bezier edit button will not be active.

![image](https://user-images.githubusercontent.com/61938263/218256176-88b1b196-7b6b-4404-84ad-e8694f23bb1b.png)

Also, if you delete a track in the Bezier Editor, or in undo redo, it will not update correctly.

### Steps to reproduce

![image](https://user-images.githubusercontent.com/61938263/218256230-4b0219d5-87e4-453a-8294-59f8feb0cfd5.png)


### Minimal reproduction project

N/A
bake_label2->set_text("Blendshape Track:");
	bake_label3->set_text("Value Track:");
	bake_label4->set_text("FPS:");
	bake_grid->add_child(bake_label1);
	bake_grid->add_child(bake_trs);
	bake_grid->add_child(bake_label2);
	bake_grid->add_child(bake_blendshape);
	bake_grid->add_child(bake_label3);
	bake_grid->add_child(bake_value);
	bake_grid->add_child(bake_label4);
	bake_grid->add_child(bake_fps);
	
	track_copy_dialog = memnew(ConfirmationDialog);
	add_child(track_copy_dialog);
	track_copy_dialog->set_title(TTR("Select Tracks to Copy"));
	track_copy_dialog->set_ok_button_text(TTR("Copy"));
	VBoxContainer *track_copy_vbox = memnew(VBoxContainer);
	track_copy_dialog->add_child(track_copy_vbox);
	Button *select_all_button = memnew(Button);
	select_all_button->set_text(TTR("Select All/None"));
	select_all_button->connect("pressed", callable_mp(this, &AnimationTrackEditor::_select_all_tracks_for_copy));
	track_copy_vbox->add_child(select_all_button);
	track_copy_select = memnew(Tree);
	track_copy_select->set_h_size_flags(SIZE_EXPAND_FILL);
	track_copy_select->set_v_size_flags(SIZE_EXPAND_FILL);
	track_copy_select->set_hide_root(true);
	track_copy_vbox->add_child(track_copy_select);
	track_copy_dialog->connect("confirmed", callable_mp(this, &AnimationTrackEditor::_edit_menu_pressed).bind(EDIT_COPY_TRACKS_CONFIRM));
}
AnimationTrackEditor::~AnimationTrackEditor() {