### 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.
int control_height = get_size().height;
	control_height -= style_normal->get_minimum_size().height;
	if (h_scroll->is_visible_in_tree()) {
		control_height -= h_scroll->get_size().height;
	}
	return control_height;
}
void TextEdit::_v_scroll_input() {
	scrolling = false;
	minimap_clicked = false;
}
void TextEdit::_scroll_moved(double p_to_val) {
	if (updating_scrolls) {
		return;
	}
	if (h_scroll->is_visible_in_tree()) {
		first_visible_col = h_scroll->get_value();
	}
	if (v_scroll->is_visible_in_tree()) {