I am not sure if this is related to the ongoing puppet issues there but it seems that the JobQueue and/or GlobalRename refuses to work for some reason. See this logstash entries for recent errors when renaming BobFeliciano to Spambot~BobFeliciano (note: the account is a confirmed spambot).
Result is that the rename is stuck as evidenced here and showJobs.php returns 0 for the wiki so my guess is that the job never arrived to the queue.