### 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.
return v_scroll_speed;
}
void TextEdit::set_fit_content_height_enabled(const bool p_enabled) {
	if (fit_content_height == p_enabled) {
		return;
	}
	fit_content_height = p_enabled;
	update_minimum_size();
}
bool TextEdit::is_fit_content_height_enabled() const {
	return fit_content_height;
}
double TextEdit::get_scroll_pos_for_line(int p_line, int p_wrap_index) const {
	ERR_FAIL_INDEX_V(p_line, text.size(), 0);
	ERR_FAIL_COND_V(p_wrap_index < 0, 0);
	ERR_FAIL_COND_V(p_wrap_index > get_line_wrap_count(p_line), 0);
	if (get_line_wrapping_mode() == LineWrappingMode::LINE_WRAPPING_NONE && !_is_hiding_enabled()) {
		return p_line;
	}
	double new_line_scroll_pos = 0.0;
	if (p_line > 0) {
		new_line_scroll_pos = get_visible_line_count_in_range(0, MIN(p_line - 1, text.size() - 1));
	}
	new_line_scroll_pos += p_wrap_index;
	return new_line_scroll_pos;
}
void TextEdit::set_line_as_first_visible(int p_line, int p_wrap_index) {