### Godot version

Godot 4 Beta 16

### System information

Ubuntu 22.04 Running on Vulkan Mesa Intel® UHD Graphics 620 (WHL GT2)

### Issue description


https://user-images.githubusercontent.com/63069499/215583979-e525a1fd-930f-4650-8e9f-3752100cdb72.mp4

Godot keeps clicking out of the color editor

EDIT: I did a test it seems to be single window mode

### Steps to reproduce

Go in editor settings and search for single window mode 

Enable it

Try using the color editor on any color field with single window mode

### Minimal reproduction project

N/A 
String ret;
	Atom utf8_atom = XInternAtom(x11_display, "UTF8_STRING", True);
	if (utf8_atom != None) {
		ret = _clipboard_get_impl(p_source, x11_window, utf8_atom);
	}
	if (ret.is_empty()) {
		ret = _clipboard_get_impl(p_source, x11_window, XA_STRING);
	}
	return ret;
}
String DisplayServerX11::clipboard_get() const {
	_THREAD_SAFE_METHOD_
	String ret;
	ret = _clipboard_get(XInternAtom(x11_display, "CLIPBOARD", 0), windows[MAIN_WINDOW_ID].x11_window);
	if (ret.is_empty()) {
		ret = _clipboard_get(XA_PRIMARY, windows[MAIN_WINDOW_ID].x11_window);
	}
	return ret;
}
String DisplayServerX11::clipboard_get_primary() const {
	_THREAD_SAFE_METHOD_
	String ret;
	ret = _clipboard_get(XInternAtom(x11_display, "PRIMARY", 0), windows[MAIN_WINDOW_ID].x11_window);
	if (ret.is_empty()) {
		ret = _clipboard_get(XA_PRIMARY, windows[MAIN_WINDOW_ID].x11_window);
	}
	return ret;
}
Bool DisplayServerX11::_predicate_clipboard_save_targets(Display *display, XEvent *event, XPointer arg) {