### 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;
	data.block_minimum_size_adjust = p_block;
}
Size2 Control::get_minimum_size() const {
	ERR_READ_THREAD_GUARD_V(Size2());
	Vector2 ms;
	GDVIRTUAL_CALL(_get_minimum_size, ms);
	return ms;
}
void Control::set_custom_minimum_size(const Size2 &p_custom) {
	ERR_MAIN_THREAD_GUARD;
	if (p_custom == data.custom_minimum_size) {
		return;
	}
	if (!isfinite(p_custom.x) || !isfinite(p_custom.y)) {
		
		return;
	}
	data.custom_minimum_size = p_custom;
	update_minimum_size();
}
Size2 Control::get_custom_minimum_size() const {