### 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.
ERR_FAIL_INDEX(p_from_line, text.size());
	ERR_FAIL_INDEX(p_to_line, text.size());
	if (p_from_line == p_to_line) {
		return;
	}
	for (int i = 0; i < gutters.size(); i++) {
		if (!gutters[i].overwritable) {
			continue;
		}
		if (text.get_line_gutter_text(p_from_line, i) != "") {
			text.set_line_gutter_text(p_to_line, i, text.get_line_gutter_text(p_from_line, i));
			text.set_line_gutter_item_color(p_to_line, i, text.get_line_gutter_item_color(p_from_line, i));
		}
		if (text.get_line_gutter_icon(p_from_line, i).is_valid()) {
			text.set_line_gutter_icon(p_to_line, i, text.get_line_gutter_icon(p_from_line, i));
			text.set_line_gutter_item_color(p_to_line, i, text.get_line_gutter_item_color(p_from_line, i));
		}
		if (text.get_line_gutter_metadata(p_from_line, i) != "") {
			text.set_line_gutter_metadata(p_to_line, i, text.get_line_gutter_metadata(p_from_line, i));
		}
		if (text.is_line_gutter_clickable(p_from_line, i)) {
			text.set_line_gutter_clickable(p_to_line, i, true);
		}
	}
	queue_redraw();
}
void TextEdit::set_gutter_custom_draw(int p_gutter, const Callable &p_draw_callback) {