### 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
Size2 parent_rect_size = get_parent_anchorable_rect().size;
	real_t x = p_rect.position.x;
	if (is_layout_rtl()) {
		x = parent_rect_size.x - x - p_rect.size.x;
	}
	r_offsets[0] = x - (p_anchors[0] * parent_rect_size.x);
	r_offsets[1] = p_rect.position.y - (p_anchors[1] * parent_rect_size.y);
	r_offsets[2] = x + p_rect.size.x - (p_anchors[2] * parent_rect_size.x);
	r_offsets[3] = p_rect.position.y + p_rect.size.y - (p_anchors[3] * parent_rect_size.y);
}
void Control::_set_layout_mode(LayoutMode p_mode) {
	bool list_changed = false;
	if (data.stored_layout_mode != p_mode) {
		list_changed = true;
		data.stored_layout_mode = p_mode;
	}
	if (data.stored_layout_mode == LayoutMode::LAYOUT_MODE_POSITION) {
		data.stored_use_custom_anchors = false;
		set_anchors_and_offsets_preset(LayoutPreset::PRESET_TOP_LEFT, LayoutPresetMode::PRESET_MODE_KEEP_SIZE);
		set_grow_direction_preset(LayoutPreset::PRESET_TOP_LEFT);
	}
	if (list_changed) {
		notify_property_list_changed();
	}
}
void Control::_update_layout_mode() {