161
160
elif self._last_revision == NULL_REVISION:
162
161
# fetch_spec is None + last_revision is null => empty fetch.
163
162
# explicit limit of no revisions needed
165
164
elif self._last_revision is not None:
167
166
self.from_repository, [self._last_revision],
168
167
find_ghosts=self.find_ghosts).execute()
169
168
else: # self._last_revision is None:
172
171
find_ghosts=self.find_ghosts).execute()