### 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.
Key modifiers = p_keycode & KeyModifierMask::MODIFIER_MASK;
	Key keycode_no_mod = (Key)(p_keycode & KeyModifierMask::CODE_MASK);
	if (keycode_no_mod == Key::PRINT ||
			keycode_no_mod == Key::KP_ADD ||
			keycode_no_mod == Key::KP_5 ||
			(keycode_no_mod >= Key::KEY_0 && keycode_no_mod <= Key::KEY_9)) {
		return p_keycode;
	}
	unsigned int scancode = KeyMappingWindows::get_scancode(keycode_no_mod);
	if (scancode == 0) {
		return p_keycode;
	}
	HKL current_layout = GetKeyboardLayout(0);
	UINT vk = MapVirtualKeyEx(scancode, MAPVK_VSC_TO_VK, current_layout);
	if (vk == 0) {
		return p_keycode;
	}
	UINT char_code = MapVirtualKeyEx(vk, MAPVK_VK_TO_CHAR, current_layout) & 0x7FFF;
	
	
	if (char_code >= 32 && char_code <= 127) {
		
		if (char_code == (unsigned int)Key::BRACKETLEFT || char_code == (unsigned int)Key::BRACKETRIGHT) {
			char_code += 32;
		}
		return (Key)(char_code | (unsigned int)modifiers);
	}
	return (Key)(KeyMappingWindows::get_keysym(vk) | modifiers);
}
String _get_full_layout_name_from_registry(HKL p_layout) {