cmssw: too many different non-versioned layouts for `pair`

Something similar was already reported in 11_3_0_pre3 https://mattermost.web.cern.ch/cms-o-and-c/pl/dzqcc5poriy5zx5igm9bjr7npw

Here is a report mentioned in Feb 28 TRK POG meeting, in a simpler setup using interactive prompt: (I tired in CMSSW_12_3_X_2022-02-28-1100 and in a bit older CMSSW_12_3_0_pre1)

FWLiteEnabler::enable();
e = new TChain("Events");
e->Add("root://cms-xrd-global.cern.ch//store/data/Commissioning2021/MinimumBias8/RECO/900GeVnomkFit_FEVT-v1/40000/aa98e17b-012c-492b-8e12-e530018cd464.root");
e->Add("root://cms-xrd-global.cern.ch//store/data/Commissioning2021/MinimumBias8/RECO/900GeVnomkFit_FEVT-v1/40000/ab71db55-c0e9-4e85-84a9-1508280782ff.root");
e->GetEntries();

leads to warnings first, right after the file open

Warning in <TClass::Init>: no dictionary for class pair<reco::Muon::MuonTrackType,edm::Ref<vector<reco::Track>,reco::Track,edm::refhelper::FindUsingAdvance<vector<reco::Track>,reco::Track> > > is available

then a bit later

Warning in <TStreamerInfo::BuildCheck>:
   The class pair<reco::Muon::MuonTrackType,edm::Ref<vector<reco::Track>,reco::Track,edm::refhelper::FindUsingAdvance<vector<reco::Track>,reco::Track> > > transitioned from not having a specified class version
   to having a specified class version (the current class version is 1).
   However too many different non-versioned layouts of the class have been
   loaded so far.  This prevent the proper reading of objects written with
   the class layout version 2, in particular from the file:
   root://cms-xrd-global.cern.ch//store/data/Commissioning2021/MinimumBias8/RECO/900GeVnomkFit_FEVT-v1/40000/ab71db55-c0e9-4e85-84a9-1508280782ff.root.
   To work around this issue, load fewer 'old' files in the same ROOT session.
Warning in <TStreamerInfo::CompareContent>: The following data member of
the on-file layout version 2 of class 'pair<reco::Muon::MuonTrackType,edm::Ref<vector<reco::Track>,reco::Track,edm::refhelper::FindUsingAdvance<vector<reco::Track>,reco::Track> > >' differs from
the in-memory layout version 2:
   reco::Muon::MuonTrackType first; //
vs
   reco::Muon::MuonTrackType first; //

in the cmsRun jobs reading these files leads to an exception.

 An exception of category 'FileOpenError' occurred while
    [0] Calling InputSource::readFile_
    [1] Calling RootInputFileSequence::initTheFile()
    Additional Info:
       [a] Calling RootInputFileSequence::initTheFile(): fail to open the file with name root://gfe02.grid.hep.ph.ic.ac.uk:1097///store/data/Commissioning2021/MinimumBias8/RECO/900GeVnomkFit_FEVT-v1/40000/ab71db55-c0e9-4e85-84a9-1508280782ff.root
       [b] Input file root://cms-xrootd.gridpp.ac.uk//store/data/Commissioning2021/MinimumBias8/RECO/900GeVnomkFit_FEVT-v1/40000/ab71db55-c0e9-4e85-84a9-1508280782ff.root?tried=gfe02.grid.hep.ph.ic.ac.uk could not be opened.
       [c] Fatal Root Error: @SUB=TStreamerInfo::BuildCheck
    The class pair<reco::Muon::MuonTrackType,edm::Ref<vector<reco::Track>,reco::Track,edm::refhelper::FindUsingAdvance<vector<reco::Track>,reco::Track> > >  transitioned from not having a specified class version
    to having a specified class version (the current class version is 1).
    However too many different non-versioned layouts of the class have been
    loaded so far.  This prevent the proper reading of objects written with
    the class layout version 2, in particular from the file:
    root://cms-xrootd.gridpp.ac.uk//store/data/Commissioning2021/MinimumBias8/RECO/900GeVnomkFit_FEVT-v1/40000/ab71db55-c0e9-4e85-84a9-1508280782ff.root.
    To work around this issue, load fewer 'old' files in the same ROOT session.
 ----- End Fatal Exception

The process history for these files is

Processing History:
  LHC '' '"CMSSW_12_0_3_patch1"' [1]  (dd392193a5747b5c718c2371e7635ff9)
    HLT '' '"CMSSW_12_0_3_patch1"' [1]  (e49133644bc5afeef3ab479fd4e5745b)
      RECO '' '"CMSSW_12_1_1"' [1]  (99bd6b628277dec42c83d9e3e5a6dff3)

@pcanal