### 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.
remove_caret(second_caret);
				caret_edit_order = get_caret_index_edit_order();
				i--;
			}
			continue;
		}
		
		if (has_selection(second_caret)) {
			if (get_caret_line(first_caret) >= get_selection_from_line(second_caret) && get_caret_line(first_caret) <= get_selection_to_line(second_caret) && (get_caret_line(first_caret) > get_selection_from_line(second_caret) || get_caret_column(first_caret) >= get_selection_from_column(second_caret)) && (get_caret_line(first_caret) < get_selection_to_line(second_caret) || get_caret_column(first_caret) <= get_selection_to_column(second_caret))) {
				remove_caret(first_caret);
				caret_edit_order = get_caret_index_edit_order();
				i--;
			}
			continue;
		}
		
		if (get_caret_line(first_caret) == get_caret_line(second_caret) && get_caret_column(first_caret) == get_caret_column(second_caret)) {
			
			if (first_caret < second_caret) {
				remove_caret(first_caret);
			} else {
				remove_caret(second_caret);
			}
			i--;
			caret_edit_order = get_caret_index_edit_order();
			continue;
		}
	}
}
int TextEdit::get_caret_count() const {