### 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) {
		return;
	}
	_clear_selection();
}
void AnimationTrackEditor::_select_at_anim(const Ref<Animation> &p_anim, int p_track, float p_pos) {
	if (animation != p_anim) {
		return;
	}
	int idx = animation->track_find_key(p_track, p_pos, Animation::FIND_MODE_APPROX);
	ERR_FAIL_COND(idx < 0);
	SelectedKey sk;
	sk.track = p_track;
	sk.key = idx;
	KeyInfo ki;
	ki.pos = p_pos;
	selection.insert(sk, ki);
	_update_key_edit();
}
void AnimationTrackEditor::_move_selection_commit() {