Indeed, https://hypernews.cern.ch/HyperNews/CMS/get/relAnnounce/1237.html shows the step backwards for RecoMuon/MuonIdentification.
A comment is found here: https://twiki.cern.ch/twiki/bin/view/CMS/OfflineComputingPlanningMeeting20121019#Reconstruction_AN1, the outcome found here: https://twiki.cern.ch/twiki/bin/view/CMS/OfflineComputingPlanningMeeting20121026#Status_of_CMSSW_5_3_X_Shahzad
So, the not available tagset with the fix was substituted by using the older tag again. Was that intentional? A temporary solution? What is the *correct* solution?