### 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 
if (!keysym.is_empty()) {
					k->set_key_label(fix_key_label(keysym[0], keycode));
				} else {
					k->set_key_label(keycode);
				}
				if (keypress) {
					k->set_unicode(fix_unicode(tmp[i]));
				}
				k->set_echo(false);
				if (k->get_keycode() == Key::BACKTAB) {
					
					k->set_keycode(Key::TAB);
					k->set_physical_keycode(Key::TAB);
					k->set_shift_pressed(true);
				}
				Input::get_singleton()->parse_input_event(k);
			}
			memfree(utf8string);
			return;
		}
		memfree(utf8string);
#else
		do {
			int mnbytes = XmbLookupString(xic, xkeyevent, xmbstring, xmblen - 1, &keysym_unicode, &status);
			xmbstring[mnbytes] = '\0';
			if (status == XBufferOverflow) {
				xmblen = mnbytes + 1;
				xmbstring = (char *)memrealloc(xmbstring, xmblen);
			}
		} while (status == XBufferOverflow);