Automatically remove Bulkoperations Group

When we create Bulkoperations with devices over the filter funktion. Cumulocity creates a Bulkoperations Group in the background. This Groups are not deleted automatically and remain on the plattform till the Groups are deleted manuelly. When Bulkoperation are deleted the Groups are still available so the groups could not be assigned to the correspondend Bulkoperation. There is a Retention Rule which deletes Bulkoperation over a timeperiod but not Bulkoperation Goups. It would be clearer to have the groups deleted so the overwiev of the groups would be easier and we would have only the Bulkoperation Groups in use.