### Godot version

4.0.dev(0810ecaafdbee3ea747219e6ab3a8de5d2216a09)

### System information

any

### Issue description

https://user-images.githubusercontent.com/61938263/215898051-8506b45e-a9d4-4c3f-b1b3-28f202dea67b.mp4



### Steps to reproduce

Editt AnimationBlendTree

### Minimal reproduction project

N/A
zoom_minus->set_focus_mode(FOCUS_NONE);
	zoom_reset = memnew(Button);
	zoom_reset->set_flat(true);
	zoom_hb->add_child(zoom_reset);
	zoom_reset->set_tooltip_text(RTR("Zoom Reset"));
	zoom_reset->connect("pressed", callable_mp(this, &GraphEdit::_zoom_reset));
	zoom_reset->set_focus_mode(FOCUS_NONE);
	zoom_plus = memnew(Button);
	zoom_plus->set_flat(true);
	zoom_hb->add_child(zoom_plus);
	zoom_plus->set_tooltip_text(RTR("Zoom In"));
	zoom_plus->connect("pressed", callable_mp(this, &GraphEdit::_zoom_plus));
	zoom_plus->set_focus_mode(FOCUS_NONE);
	snap_button = memnew(Button);
	snap_button->set_flat(true);
	snap_button->set_toggle_mode(true);
	snap_button->set_tooltip_text(RTR("Enable snap and show grid."));
	snap_button->connect("pressed", callable_mp(this, &GraphEdit::_snap_toggled));
	snap_button->set_pressed(true);
	snap_button->set_focus_mode(FOCUS_NONE);
	zoom_hb->add_child(snap_button);
	snap_amount = memnew(SpinBox);
	snap_amount->set_min(5);
	snap_amount->set_max(100);
	snap_amount->set_step(1);
	snap_amount->set_value(20);
	snap_amount->connect("value_changed", callable_mp(this, &GraphEdit::_snap_value_changed));
	zoom_hb->add_child(snap_amount);
	minimap_button = memnew(Button);
	minimap_button->set_flat(true);