Free the created refs in git_remote_update_tips

src/remote.c

@@ -261,6 +261,7 @@ int git_remote_update_tips(git_remote *remote)
 	if (!strcmp(head->name, GIT_HEAD_FILE)) {
 		error = git_reference_create_oid(&ref, remote->repo, GIT_FETCH_HEAD_FILE, &head->oid, 1);
 		i = 1;
+		git_reference_free(ref);
 		if (error < GIT_SUCCESS)
 			return git__rethrow(error, "Failed to update FETCH_HEAD");
 	}
@@ -275,6 +276,8 @@ int git_remote_update_tips(git_remote *remote)
 		error = git_reference_create_oid(&ref, remote->repo, refname, &head->oid, 1);
 		if (error < GIT_SUCCESS)
 			return error;
+
+		git_reference_free(ref);
 	}
 
 	return GIT_SUCCESS;