### 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
if (animation != p_anim && _get_track_selected() >= 0) {
		track_edits[_get_track_selected()]->release_focus();
	}
	if (animation.is_valid()) {
		animation->disconnect_changed(callable_mp(this, &AnimationTrackEditor::_animation_changed));
		_clear_selection();
	}
	animation = p_anim;
	read_only = p_read_only;
	timeline->set_animation(p_anim, read_only);
	_cancel_bezier_edit();
	_update_tracks();
	if (animation.is_valid()) {
		animation->connect_changed(callable_mp(this, &AnimationTrackEditor::_animation_changed));
		hscroll->show();
		edit->set_disabled(read_only);
		step->set_block_signals(true);
		_update_step_spinbox();
		step->set_block_signals(false);
		step->set_read_only(false);
		snap->set_disabled(false);
		snap_mode->set_disabled(false);
		imported_anim_warning->hide();
		for (int i = 0; i < animation->get_track_count(); i++) {
			if (animation->track_is_imported(i)) {
				imported_anim_warning->show();
				break;
			}
		}
		_check_bezier_exist();