### 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(Ref<Font>());
	return data.theme_owner->get_theme_default_font();
}
int Control::get_theme_default_font_size() const {
	ERR_READ_THREAD_GUARD_V(0);
	return data.theme_owner->get_theme_default_font_size();
}
void Control::begin_bulk_theme_override() {
	ERR_MAIN_THREAD_GUARD;
	data.bulk_theme_override = true;
}
void Control::end_bulk_theme_override() {
	ERR_MAIN_THREAD_GUARD;
	ERR_FAIL_COND(!data.bulk_theme_override);
	data.bulk_theme_override = false;
	_notify_theme_override_changed();
}
TypedArray<Vector3i> Control::structured_text_parser(TextServer::StructuredTextParser p_parser_type, const Array &p_args, const String &p_text) const {
	ERR_READ_THREAD_GUARD_V(TypedArray<Vector3i>());
	if (p_parser_type == TextServer::STRUCTURED_TEXT_CUSTOM) {
		TypedArray<Vector3i> ret;
		GDVIRTUAL_CALL(_structured_text_parser, p_args, p_text, ret);
		return ret;
	} else {
		return TS->parse_structured_text(p_parser_type, p_args, p_text);
	}
}
void Control::set_layout_direction(Control::LayoutDirection p_direction) {