### 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 viewport_height = (draw_amount - 1) * minimap_line_height;
	int control_height = _get_control_height() - viewport_height;
	int viewport_offset_y = round(get_scroll_pos_for_line(first_vis_line + 1) * control_height) / ((v_scroll->get_max() <= minimap_visible_lines) ? (minimap_visible_lines - draw_amount) : (v_scroll->get_max() - draw_amount));
	
	int num_lines_before = round((viewport_offset_y) / minimap_line_height);
	int minimap_line = (v_scroll->get_max() <= minimap_visible_lines) ? -1 : first_vis_line;
	if (first_vis_line > 0 && minimap_line >= 0) {
		minimap_line -= get_next_visible_line_index_offset_from(first_vis_line, 0, -num_lines_before).x;
		minimap_line -= (minimap_line > 0 && smooth_scroll_enabled ? 1 : 0);
	} else {
		minimap_line = 0;
	}
	int row = minimap_line + Math::floor(rows);
	if (get_line_wrapping_mode() != LineWrappingMode::LINE_WRAPPING_NONE || _is_hiding_enabled()) {
		int f_ofs = get_next_visible_line_index_offset_from(minimap_line, first_visible_line_wrap_ofs, rows + (1 * SIGN(rows))).x - 1;
		if (rows < 0) {
			row = minimap_line - f_ofs;
		} else {
			row = minimap_line + f_ofs;
		}
	}
	if (row < 0) {
		row = 0;
	}
	if (row >= text.size()) {
		row = text.size() - 1;
	}
	return row;
}
bool TextEdit::is_dragging_cursor() const {