Currently the registration of runtime capabilities for the management interfaces is being done in the add handlers instead of by the MRR. This is fragile as it's non-standard and makes it more difficult to add other capabilities, since registering via the handler turns off registration via the MRR.

WFCORE-1819 is needed to fix this.

This is arguably a bug but I'll call it an enhancement for now. It's just making the code better.