Assign prev_results to correct member in TrasnportOperator's constructor
Assign prev_results to correct member in TrasnportOperator's constructor

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