### 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.
for (const int &i : caret_edit_order) {
		if (p_caret != -1 && p_caret != i) {
			continue;
		}
		int cc = get_caret_column(i);
		int cl = get_caret_line(i);
		if (cc == 0 && cl == 0) {
			continue;
		}
		int prev_line = cc ? cl : cl - 1;
		int prev_column = cc ? (cc - 1) : (text[cl - 1].length());
		merge_gutters(prev_line, cl);
		if (_is_line_hidden(cl)) {
			_set_line_as_hidden(prev_line, true);
		}
		_remove_text(prev_line, prev_column, cl, cc);
		set_caret_line(prev_line, false, true, 0, i);
		set_caret_column(prev_column, i == 0, i);
		adjust_carets_after_edit(i, prev_line, prev_column, cl, cc);
	}
	merge_overlapping_carets();
	end_complex_operation();
}
void TextEdit::_cut_internal(int p_caret) {
	ERR_FAIL_COND(p_caret > carets.size());
	if (!editable) {
		return;
	}
	if (has_selection(p_caret)) {
		DisplayServer::get_singleton()->clipboard_set(get_selected_text(p_caret));