### 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 (key_edit) {
		
		if (InspectorDock::get_inspector_singleton()->get_edited_object() == key_edit) {
			EditorNode::get_singleton()->push_item(nullptr);
		}
		
		memdelete(key_edit);
		key_edit = nullptr;
	}
	if (multi_key_edit) {
		if (InspectorDock::get_inspector_singleton()->get_edited_object() == multi_key_edit) {
			EditorNode::get_singleton()->push_item(nullptr);
		}
		memdelete(multi_key_edit);
		multi_key_edit = nullptr;
	}
}
void AnimationTrackEditor::_clear_selection(bool p_update) {
	selection.clear();
	if (p_update) {
		_redraw_tracks();
	}
	_clear_key_edit();
}
void AnimationTrackEditor::_update_key_edit() {