Delete Version B after rejected promotion?
Scenario: while working with the CAD part, a version B was created when it should have remained version A (still novice at this). However, that .prt file was part of 2 promotion requests (both rejected so the WT part and all of its dependents are still "in work") and now when I try to delete version B of the CAD part, I get the error that it's part of a promotion request baseline. I've gone to the actual baseline and removed version B from that, but that doesn't seem to have helped. It appears that the fact that it's in the promotion request history is the issue, however I don't see any way of deleting old promotion requests in the history that have already been rejected. I've tried renaming the CAD part in the hopes that a new name would break the association with the baseline promotion history, but that didn't get me any further.
My question is: what is the best way to delete version B so I can get back to A? Is it possible at all?
Thanks in advance for your help.

