### 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
_clear_key_edit();
	if (!animation.is_valid()) {
		return;
	}
	if (selection.size() == 1) {
		key_edit = memnew(AnimationTrackKeyEdit);
		key_edit->animation = animation;
		key_edit->animation_read_only = read_only;
		key_edit->track = selection.front()->key().track;
		key_edit->use_fps = timeline->is_using_fps();
		int key_id = selection.front()->key().key;
		if (key_id >= animation->track_get_key_count(key_edit->track)) {
			_clear_key_edit();
			return; 
		}
		float ofs = animation->track_get_key_time(key_edit->track, key_id);
		key_edit->key_ofs = ofs;
		key_edit->root_path = root;
		NodePath np;
		key_edit->hint = _find_hint_for_track(key_edit->track, np);
		key_edit->base = np;
		EditorNode::get_singleton()->push_item(key_edit);
	} else if (selection.size() > 1) {
		multi_key_edit = memnew(AnimationMultiTrackKeyEdit);