### 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_READ_THREAD_GUARD_V(false);
	return is_inside_tree() && (!data.parent_canvas_item && !data.RI && is_set_as_top_level());
}
Control *Control::get_parent_control() const {
	ERR_READ_THREAD_GUARD_V(nullptr);
	return data.parent_control;
}
Window *Control::get_parent_window() const {
	ERR_READ_THREAD_GUARD_V(nullptr);
	return data.parent_window;
}
Control *Control::get_root_parent_control() const {
	ERR_READ_THREAD_GUARD_V(nullptr);
	const CanvasItem *ci = this;
	const Control *root = this;
	while (ci) {
		const Control *c = Object::cast_to<Control>(ci);
		if (c) {
			root = c;
			if (c->data.RI || c->is_top_level_control()) {
				break;
			}
		}
		ci = ci->get_parent_item();
	}
	return const_cast<Control *>(root);
}
Rect2 Control::get_parent_anchorable_rect() const {