641     srcrepo.dirstate._map._use_dirstate_tree = True

   641     srcrepo.dirstate._map._use_dirstate_tree = True

   642     srcrepo.dirstate._map.preload()

   642     srcrepo.dirstate._map.preload()

   643     srcrepo.dirstate._use_dirstate_v2 = new == b'v2'

   643     srcrepo.dirstate._use_dirstate_v2 = new == b'v2'

   644     srcrepo.dirstate._map._use_dirstate_v2 = srcrepo.dirstate._use_dirstate_v2

   644     srcrepo.dirstate._map._use_dirstate_v2 = srcrepo.dirstate._use_dirstate_v2

   645     srcrepo.dirstate._dirty = True

   645     srcrepo.dirstate._dirty = True

   646     srcrepo.dirstate.write(None)

   647     srcrepo.dirstate.write(None)

   647 

   648 

   648     scmutil.writereporequirements(srcrepo, upgrade_op.new_requirements)

   649     scmutil.writereporequirements(srcrepo, upgrade_op.new_requirements)