wbentityusage : wbeuaspect should return entity IDs that used in given aspect. Allowed aspect values are : S, L, D, T, C, X, O. However, aspects have now more detailed information (ie. L.en, C.P17 etc ) and wbeuaspect doesn't return those.
Examples
Without wbeuaspect:
Works:
Broken:
Best case would be that user could filter results with detailed keys ("L.en", "C.P17" etc)