### Godot version

v4.0.beta.custom_build [13f0158]

### System information

Windows 10

### Issue description

When doing operations (`begin_complex_operation` and `end_complex_operation`) with multiple selections in TextEdit, some of these selections don't revert upon undo. This behavior is affects some of script editor's operations, like duplicate selection and delete lines.

### Steps to reproduce

Open script editor, make multiple selections. Keep in mind what you have selected. Do duplicate selection (ctrl+shift+D). Undo (ctrl+Z). Compare the result to what you remember.

### Minimal reproduction project

N/A
const Point2 mp = get_local_mouse_pos();
	const int xmargin_end = get_size().width - theme_cache.style_normal->get_margin(SIDE_RIGHT);
	const bool hovering_sidebar = mp.x > xmargin_end - minimap_width && mp.x < xmargin_end;
	if (!hovering_sidebar) {
		if (hovering_minimap) {
			
			hovering_minimap = false;
			queue_redraw();
		}
		
		return;
	}
	const int row = get_minimap_line_at_pos(mp);
	const bool new_hovering_minimap = row >= get_first_visible_line() && row <= get_last_full_visible_line();
	if (new_hovering_minimap != hovering_minimap) {
		
		hovering_minimap = new_hovering_minimap;
		queue_redraw();
	}
}
void TextEdit::_update_minimap_click() {