### 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
return editable;
}
void TextEdit::set_text_direction(Control::TextDirection p_text_direction) {
	ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
	if (text_direction != p_text_direction) {
		text_direction = p_text_direction;
		if (text_direction != TEXT_DIRECTION_AUTO && text_direction != TEXT_DIRECTION_INHERITED) {
			input_direction = text_direction;
		}
		TextServer::Direction dir;
		if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
			dir = is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR;
		} else {
			dir = (TextServer::Direction)text_direction;
		}
		text.set_direction_and_language(dir, (!language.is_empty()) ? language : TranslationServer::get_singleton()->get_tool_locale());
		text.invalidate_font();
		_update_placeholder();
		if (menu_dir) {
			menu_dir->set_item_checked(menu_dir->get_item_index(MENU_DIR_INHERITED), text_direction == TEXT_DIRECTION_INHERITED);
			menu_dir->set_item_checked(menu_dir->get_item_index(MENU_DIR_AUTO), text_direction == TEXT_DIRECTION_AUTO);
			menu_dir->set_item_checked(menu_dir->get_item_index(MENU_DIR_LTR), text_direction == TEXT_DIRECTION_LTR);
			menu_dir->set_item_checked(menu_dir->get_item_index(MENU_DIR_RTL), text_direction == TEXT_DIRECTION_RTL);
		}
		queue_redraw();
	}
}
Control::TextDirection TextEdit::get_text_direction() const {