### 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.
}
		} break;
		case MENU_INSERT_PDI: {
			if (editable) {
				insert_text_at_caret(String::chr(0x2069));
			}
		} break;
		case MENU_INSERT_ZWJ: {
			if (editable) {
				insert_text_at_caret(String::chr(0x200D));
			}
		} break;
		case MENU_INSERT_ZWNJ: {
			if (editable) {
				insert_text_at_caret(String::chr(0x200C));
			}
		} break;
		case MENU_INSERT_WJ: {
			if (editable) {
				insert_text_at_caret(String::chr(0x2060));
			}
		} break;
		case MENU_INSERT_SHY: {
			if (editable) {
				insert_text_at_caret(String::chr(0x00AD));
			}
		}
	}
}
void LineEdit::set_context_menu_enabled(bool p_enable) {