Merge branch 'jt/lazy-object-fetch-fix'

The code to backfill objects in lazily cloned repository did not
work correctly, which has been corrected.

* jt/lazy-object-fetch-fix:
  fetch-object: set exact_oid when fetching
  fetch-object: unify fetch_object[s] functions

sha1-file.c

@@ -1317,7 +1317,7 @@ int oid_object_info_extended(struct repository *r, const struct object_id *oid,
 			 * TODO Pass a repository struct through fetch_object,
 			 * such that arbitrary repositories work.
 			 */
-			fetch_object(repository_format_partial_clone, real->hash);
+			fetch_objects(repository_format_partial_clone, real, 1);
 			already_retried = 1;
 			continue;
 		}