813
813
to_revision = osutils.safe_revision_id(to_revision)
814
814
merger.other_rev_id = to_revision
815
815
if merger.other_rev_id is None:
817
817
self.branch.fetch(branch, last_revision=merger.other_rev_id)
818
818
merger.other_basis = merger.other_rev_id
819
819
merger.other_tree = self.branch.repository.revision_tree(