### 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(!windows.has(p_window));
	WindowData &wd = windows[p_window];
	WindowMode old_mode = window_get_mode(p_window);
	if (old_mode == p_mode) {
		return; 
	}
	
	switch (old_mode) {
		case WINDOW_MODE_WINDOWED: {
			
		} break;
		case WINDOW_MODE_MINIMIZED: {
			_set_wm_minimized(p_window, false);
		} break;
		case WINDOW_MODE_EXCLUSIVE_FULLSCREEN:
		case WINDOW_MODE_FULLSCREEN: {
			
			wd.fullscreen = false;
			wd.exclusive_fullscreen = false;
			_set_wm_fullscreen(p_window, false, false);
			
			bool on_top = window_get_flag(WINDOW_FLAG_ALWAYS_ON_TOP, p_window);
			window_set_position(wd.last_position_before_fs, p_window);
			if (on_top) {
				_set_wm_maximized(p_window, false);
			}
		} break;
		case WINDOW_MODE_MAXIMIZED: {
			_set_wm_maximized(p_window, false);