### 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
GDCLASS(AnimationTimelineEdit, Range);
	Ref<Animation> animation;
	bool read_only = false;
	AnimationTrackEdit *track_edit = nullptr;
	int name_limit = 0;
	Range *zoom = nullptr;
	Range *h_scroll = nullptr;
	float play_position_pos = 0.0f;
	HBoxContainer *len_hb = nullptr;
	EditorSpinSlider *length = nullptr;
	Button *loop = nullptr;
	TextureRect *time_icon = nullptr;
	MenuButton *add_track = nullptr;
	Control *play_position = nullptr; 
	HScrollBar *hscroll = nullptr;
	void _zoom_changed(double);
	void _anim_length_changed(double p_new_len);
	void _anim_loop_pressed();
	void _play_position_draw();
	Rect2 hsize_rect;
	bool editing = false;
	bool use_fps = false;
	Ref<ViewPanner> panner;
	void _pan_callback(Vector2 p_scroll_vec, Ref<InputEvent> p_event);