1540
1540
# For bzr native formats must_fetch is just the tip, and if_present_fetch
1542
1542
must_fetch = set([self.last_revision()])
1547
1552
must_fetch.discard(_mod_revision.NULL_REVISION)
1548
1553
if_present_fetch.discard(_mod_revision.NULL_REVISION)
1549
1554
return must_fetch, if_present_fetch