Fixed issue with dropping scores from MGXS Pandas DF with multi-indexed distribcell paths
Fixed issue with dropping scores from MGXS Pandas DF with multi-indexed distribcell paths

mit-crpg/openmc,mit-crpg/openmc,wbinventor/openmc,smharper/openmc,johnnyliu27/openmc,walshjon/openmc,bhermanmit/openmc,paulromano/openmc,shikhar413/openmc,liangjg/openmc,smharper/openmc,paulromano/openmc,bhermanmit/openmc,samuelshaner/openmc,amandalund/openmc,amandalund/openmc,johnnyliu27/openmc,samuelshaner/openmc,shikhar413/openmc,paulromano/openmc,samuelshaner/openmc,liangjg/openmc,wbinventor/openmc,liangjg/openmc,wbinventor/openmc,shikhar413/openmc,walshjon/openmc,smharper/openmc,wbinventor/openmc,amandalund/openmc,shikhar413/openmc,mit-crpg/openmc,walshjon/openmc,liangjg/openmc,paulromano/openmc,johnnyliu27/openmc,samuelshaner/openmc,smharper/openmc,walshjon/openmc,mit-crpg/openmc,johnnyliu27/openmc,amandalund/openmc