Additional fix: openmc.mgxs.Library was appending nuclide name to a cross section data set twice when creating the XsData object for the MGXSLibrary class
Additional fix: openmc.mgxs.Library was appending nuclide name to a cross section data set twice when creating the XsData object for the MGXSLibrary class

mit-crpg/openmc,liangjg/openmc,liangjg/openmc,shikhar413/openmc,liangjg/openmc,walshjon/openmc,liangjg/openmc,shikhar413/openmc,amandalund/openmc,paulromano/openmc,amandalund/openmc,walshjon/openmc,shikhar413/openmc,paulromano/openmc,smharper/openmc,paulromano/openmc,smharper/openmc,walshjon/openmc,walshjon/openmc,amandalund/openmc,amandalund/openmc,mit-crpg/openmc,smharper/openmc,mit-crpg/openmc,smharper/openmc,mit-crpg/openmc,shikhar413/openmc,paulromano/openmc