### 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
ERR_FAIL_COND(p_event.is_null());
	if (panner->gui_input(p_event)) {
		accept_event();
		return;
	}
	const Ref<InputEventMouseButton> mb = p_event;
	if (mb.is_valid() && mb->is_pressed() && mb->is_alt_pressed() && mb->get_button_index() == MouseButton::WHEEL_UP) {
		if (track_edit) {
			track_edit->get_editor()->goto_prev_step(true);
		}
		accept_event();
	}
	if (mb.is_valid() && mb->is_pressed() && mb->is_alt_pressed() && mb->get_button_index() == MouseButton::WHEEL_DOWN) {
		if (track_edit) {
			track_edit->get_editor()->goto_next_step(true);
		}
		accept_event();
	}
	if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT && hsize_rect.has_point(mb->get_position())) {
		dragging_hsize = true;
		dragging_hsize_from = mb->get_position().x;
		dragging_hsize_at = name_limit;
	}
	if (mb.is_valid() && !mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT && dragging_hsize) {