reset n_event_ in initialize_history
reset n_event_ in initialize_history

amandalund/openmc,shikhar413/openmc,walshjon/openmc,shikhar413/openmc,walshjon/openmc,walshjon/openmc,walshjon/openmc,amandalund/openmc,amandalund/openmc,amandalund/openmc,shikhar413/openmc,shikhar413/openmc