### Godot version

v4.0.beta15.mono.official [4fa6edc88]

### System information

Linux, Xorg

### Issue description

The entire window loses focus if you ungrab focus from a Control. 
This doesn't seem to happen in Beta 14 and older betas.

### Steps to reproduce

1. Create a Control that can grab focus (tested with LineEdit and TextEdit)
2. Grab focus
3. Release focus via release_focus() or hiding the node

### Minimal reproduction project

[FocusMinimal.zip](https://github.com/godotengine/godot/files/10498175/FocusMinimal.zip)

_THREAD_SAFE_METHOD_
	ERR_FAIL_COND_V(!windows.has(p_window), Size2i());
	const WindowData &wd = windows[p_window];
	return wd.min_size;
}
void DisplayServerX11::window_set_size(const Size2i p_size, WindowID p_window) {
	_THREAD_SAFE_METHOD_
	ERR_FAIL_COND(!windows.has(p_window));
	Size2i size = p_size;
	size.x = MAX(1, size.x);
	size.y = MAX(1, size.y);
	WindowData &wd = windows[p_window];
	if (wd.size.width == size.width && wd.size.height == size.height) {
		return;
	}
	XWindowAttributes xwa;
	XSync(x11_display, False);
	XGetWindowAttributes(x11_display, wd.x11_window, &xwa);
	int old_w = xwa.width;
	int old_h = xwa.height;
	
	wd.size = size;