### 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.
Point2i screen_position = screen_get_position(screen_id);
				window.maximized = false;
				window.minimized = false;
				window.fullscreen = false;
				if (IsIconic(hWnd)) {
					window.minimized = true;
				} else if (IsZoomed(hWnd)) {
					window.maximized = true;
				} else if (window_rect.position == screen_position && window_rect.size == screen_size) {
					window.fullscreen = true;
				}
				if (!window.minimized) {
					window.width = window_client_rect.size.width;
					window.height = window_client_rect.size.height;
					rect_changed = true;
				}
#if defined(VULKAN_ENABLED)
				if (context_vulkan && window.context_created) {
					
					context_vulkan->window_resize(window_id, window.width, window.height);
				}
#endif
			}
			if (!window.minimized && (!(window_pos_params->flags & SWP_NOMOVE) || window_pos_params->flags & SWP_FRAMECHANGED)) {
				window.last_pos = window_client_rect.position;
				rect_changed = true;
			}
			if (rect_changed) {
				if (!window.rect_changed_callback.is_null()) {
					Variant size = Rect2i(window.last_pos.x, window.last_pos.y, window.width, window.height);