### 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
key_ofs = p_key_ofs;
	use_fps = p_use_fps;
	set_label("Time");
	spinner = memnew(EditorSpinSlider);
	spinner->set_focus_mode(Control::FOCUS_CLICK);
	spinner->set_min(0);
	spinner->set_allow_greater(true);
	spinner->set_allow_lesser(true);
	if (use_fps) {
		spinner->set_step(1);
		spinner->set_hide_slider(true);
		real_t fps = animation->get_step();
		if (fps > 0) {
			fps = 1.0 / fps;
		}
		spinner->set_value(key_ofs * fps);
	} else {
		spinner->set_step(0.0001);
		spinner->set_value(key_ofs);
		spinner->set_max(animation->get_length());
	}
	add_child(spinner);
	spinner->connect("grabbed", callable_mp(this, &AnimationTrackKeyEditEditor::_time_edit_entered), CONNECT_DEFERRED);
	spinner->connect("ungrabbed", callable_mp(this, &AnimationTrackKeyEditEditor::_time_edit_exited), CONNECT_DEFERRED);
	spinner->connect("value_focus_entered", callable_mp(this, &AnimationTrackKeyEditEditor::_time_edit_entered), CONNECT_DEFERRED);
	spinner->connect("value_focus_exited", callable_mp(this, &AnimationTrackKeyEditEditor::_time_edit_exited), CONNECT_DEFERRED);
}
AnimationTrackKeyEditEditor::~AnimationTrackKeyEditEditor() {
}