After deleting all resources of a topic, allow the topic to be re-importable
After deleting all resources of a topic, allow the topic to be re-importable

learningequality/kolibri,indirectlylit/kolibri,learningequality/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,learningequality/kolibri,learningequality/kolibri