### Godot version

4.0.stable

### System information

Windows 10, Forward+, GTX 1070 driver 528.49

### Issue description

When trying to edit the handle mode of a bezier cruve key from the inspector tab, the mode doesn't change. It works fine when right clicking on the key and setting the handle mode from here though. 

https://user-images.githubusercontent.com/24484962/222379540-29d71b6d-ff0c-4a21-9905-9750d0581fda.mp4



### Steps to reproduce

On an animation track using a bezier curve, select a key and try to change the handle mode from the inspector tab

### Minimal reproduction project

N/A
undo_redo->add_do_method(this, "_clear_selection_for_anim", animation);
	undo_redo->add_undo_method(this, "_clear_selection_for_anim", animation);
	
	for (RBMap<SelectedKey, KeyInfo>::Element *E = selection.back(); E; E = E->prev()) {
		float oldpos = E->get().pos;
		float newpos = snap_time(oldpos + motion);
		undo_redo->add_do_method(this, "_select_at_anim", animation, E->key().track, newpos);
		undo_redo->add_undo_method(this, "_select_at_anim", animation, E->key().track, oldpos);
	}
	moving_selection = false;
	undo_redo->add_do_method(this, "_redraw_tracks");
	undo_redo->add_undo_method(this, "_redraw_tracks");
	undo_redo->commit_action();
}
void AnimationTrackEditor::_move_selection_cancel() {
	moving_selection = false;
	_redraw_tracks();
}
bool AnimationTrackEditor::is_moving_selection() const {
	return moving_selection;
}
float AnimationTrackEditor::get_moving_selection_offset() const {
	return moving_selection_offset;
}
void AnimationTrackEditor::_box_selection_draw() {
	const Rect2 selection_rect = Rect2(Point2(), box_selection->get_size());
	box_selection->draw_rect(selection_rect, get_theme_color(SNAME("box_selection_fill_color"), EditorStringName(Editor)));
	box_selection->draw_rect(selection_rect, get_theme_color(SNAME("box_selection_stroke_color"), EditorStringName(Editor)), false, Math::round(EDSCALE));
}
void AnimationTrackEditor::_scroll_input(const Ref<InputEvent> &p_event) {