virtual cards are getting created with old names even after the name is gone.  Don't yet get how.

My first guess was that dependents weren't getting correctly cleared from the cache upon rename, though in the example below, http://test.dwagn.org/wagn/right_to_be_renamed+*right+*content doesn't appear to be cached.  The virtual card should just be cached as missing and recreated each time.  So what is stuck in the cache?