### Godot version

4.1 db5113d

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description

![image](https://github.com/godotengine/godot/assets/2223172/ee391a0d-44b7-4a35-bfa5-40d47af75f65)
Notice the empty space to the right. I actually have a worse case in my project, but I couldn't reproduce it outside:
![](https://chat.godotengine.org/file-upload/X3RMM5A9gN7RZEizo/Clipboard%20-%202%20czerwca%202023%2022:54)
Regression from #77651
CC @Rindbee 

### Steps to reproduce

1. Add a new script
2. Name it `;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;.gd`
3. Hover its name in the Script Editor

### Minimal reproduction project

N/A
ERR_MAIN_THREAD_GUARD;
	for (int i = 0; i < 4; i++) {
		data.anchor[i] = ANCHOR_BEGIN;
	}
	_compute_offsets(p_rect, data.anchor, data.offset);
	if (is_inside_tree()) {
		_size_changed();
	}
}
Rect2 Control::get_rect() const {
	ERR_READ_THREAD_GUARD_V(Rect2());
	Transform2D xform = get_transform();
	return Rect2(xform.get_origin(), xform.get_scale() * get_size());
}
Rect2 Control::get_global_rect() const {
	ERR_READ_THREAD_GUARD_V(Rect2());
	Transform2D xform = get_global_transform();
	return Rect2(xform.get_origin(), xform.get_scale() * get_size());
}
Rect2 Control::get_screen_rect() const {
	ERR_READ_THREAD_GUARD_V(Rect2());
	ERR_FAIL_COND_V(!is_inside_tree(), Rect2());
	Transform2D xform = get_screen_transform();
	return Rect2(xform.get_origin(), xform.get_scale() * get_size());
}
Rect2 Control::get_anchorable_rect() const {
	ERR_READ_THREAD_GUARD_V(Rect2());
	return Rect2(Point2(), get_size());
}
void Control::set_scale(const Vector2 &p_scale) {