public function handleSrcTableNames(GetPropertyOptionsEvent $event)
    {
        if (($event->getPropertyName() !== 'tag_srctable')
            || ($event->getEnvironment()->getDataDefinition()->getName() !== 'tl_metamodel_attribute')) {
            return;
        }

        $sqlTable     = $this->translator->trans(
            'tl_metamodel_attribute.tag_table_type.sql-table',
            [],
            'contao_tl_metamodel_attribute'
        );
        $translated   = $this->translator->trans(
            'tl_metamodel_attribute.tag_table_type.translated',
            [],
            'contao_tl_metamodel_attribute'
        );
        $untranslated = $this->translator->trans(
            'tl_metamodel_attribute.tag_table_type.untranslated',
            [],
            'contao_tl_metamodel_attribute'
        );

        $result = $this->getMetaModelTableNames($translated, $untranslated);
        foreach ($this->connection->getSchemaManager()->listTableNames() as $table) {
            if (0 !== \strpos($table, 'mm_')) {
                $result[$sqlTable][$table] = $table;
            }
        }

        if (\is_array($result[$translated])) {
            \asort($result[$translated]);
        }

        if (\is_array($result[$untranslated])) {
            \asort($result[$untranslated]);
        }

        if (\is_array($result[$sqlTable])) {
            \asort($result[$sqlTable]);
        }

        $event->setOptions($result);
    }