### 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
ClassDB::bind_method(D_METHOD("_update_obj"), &AnimationTrackKeyEdit::_update_obj);
	ClassDB::bind_method(D_METHOD("_key_ofs_changed"), &AnimationTrackKeyEdit::_key_ofs_changed);
	ClassDB::bind_method(D_METHOD("_hide_script_from_inspector"), &AnimationTrackKeyEdit::_hide_script_from_inspector);
	ClassDB::bind_method(D_METHOD("_hide_metadata_from_inspector"), &AnimationTrackKeyEdit::_hide_metadata_from_inspector);
	ClassDB::bind_method(D_METHOD("get_root_path"), &AnimationTrackKeyEdit::get_root_path);
	ClassDB::bind_method(D_METHOD("_dont_undo_redo"), &AnimationTrackKeyEdit::_dont_undo_redo);
	ClassDB::bind_method(D_METHOD("_is_read_only"), &AnimationTrackKeyEdit::_is_read_only);
}
void AnimationTrackKeyEdit::_fix_node_path(Variant &value) {