prevent invalid SQL query when clearing derelict tags from an unused prefix
prevent invalid SQL query when clearing derelict tags from an unused prefix

JarvusInnovations/Emergence-Skeleton,JarvusInnovations/Emergence-Skeleton,nbey/Emergence-Skeleton,nbey/Emergence-Skeleton,nbey/Emergence-Skeleton,nbey/Emergence-Skeleton,JarvusInnovations/Emergence-Skeleton,JarvusInnovations/Emergence-Skeleton