### 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.
if (caret_column != new_caret_column) {
				int _; 
				_get_above_below_caret_line_column(caret_line, get_caret_wrap_index(caret_index), caret_from_column, p_below, _, new_caret_from_column);
				_get_above_below_caret_line_column(caret_line, get_caret_wrap_index(caret_index), caret_to_column, p_below, _, new_caret_to_column);
			} else {
				new_caret_from_column = caret_from_column;
				new_caret_to_column = caret_to_column;
			}
		}
		
		const int new_caret_index = add_caret(new_caret_line, new_caret_column);
		if (new_caret_index == -1) {
			continue;
		}
		
		if (new_caret_from_column != new_caret_to_column) {
			select(new_caret_line, new_caret_from_column, new_caret_line, new_caret_to_column, new_caret_index);
			
			carets.write[new_caret_index].selection.selecting_line = new_caret_line;
			carets.write[new_caret_index].selection.selecting_column = new_caret_column == new_caret_from_column ? new_caret_to_column : new_caret_from_column;
			continue;
		}
		
		carets.write[new_caret_index].last_fit_x = carets[caret_index].last_fit_x;
	}
	merge_overlapping_carets();
	queue_redraw();
}
Vector<int> TextEdit::get_caret_index_edit_order() {