fix an error during 2 stage selections on multivalued data
fix an error during 2 stage selections on multivalued data

exodusdb/exodusdb,exodusdb/exodusdb,exodusdb/exodusdb,exodusdb/exodusdb,exodusdb/exodusdb,exodusdb/exodusdb,exodusdb/exodusdb