### Godot version

4.0 beta 15

### System information

Windows 10

### Issue description

It happened with both Google IME and MS-IME, and there was no problem until Beta14.
When typing Japanese characters, it is common to select a character from the suggestion window and then start typing the next character before confirming.
In this case, uncommitted characters are forcibly committed, and input of the next character begins.

**↓Beta15**

https://user-images.githubusercontent.com/186786/214753450-b493cca6-2644-4b3d-8cd2-660565cc3547.mp4

**↓Beta14**

https://user-images.githubusercontent.com/186786/214755127-dde819cc-4d63-403a-99b0-09821671f74e.mp4



### Steps to reproduce

It happened with both Google IME and MS-IME in beta15

### Minimal reproduction project

It is project independent and happens in the editor.
const Variant *args[] = { &size };
					Variant ret;
					Callable::CallError ce;
					window.rect_changed_callback.callp(args, 1, ret, ce);
				}
			}
			
			
			return 0;
		} break;
		case WM_ENTERSIZEMOVE: {
			Input::get_singleton()->release_pressed_events();
			windows[window_id].move_timer_id = SetTimer(windows[window_id].hWnd, 1, USER_TIMER_MINIMUM, (TIMERPROC) nullptr);
		} break;
		case WM_EXITSIZEMOVE: {
			KillTimer(windows[window_id].hWnd, windows[window_id].move_timer_id);
		} break;
		case WM_TIMER: {
			if (wParam == windows[window_id].move_timer_id) {
				_process_key_events();
				if (!Main::is_iterating()) {
					Main::iteration();
				}
			} else if (wParam == windows[window_id].focus_timer_id) {
				_process_activate_event(window_id, windows[window_id].saved_wparam, windows[window_id].saved_lparam);
				KillTimer(windows[window_id].hWnd, wParam);
				windows[window_id].focus_timer_id = 0U;
			}
		} break;
		case WM_SYSKEYUP: