Fixed issue with plotting nuclides with divisor types
Fixed issue with plotting nuclides with divisor types

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