1137
1137
"fetch_spec and revision_id are mutually exclusive.")
1138
1138
if self.is_in_write_group():
1140
1141
# fast path same-url fetch operations
1141
1142
if self.has_same_location(source) and fetch_spec is None:
1142
1143
# check that last_revision is in 'from' and then return a