write_locked_index(): add flag to avoid writing unchanged index

diff --git a/log-tree.c b/log-tree.c
index fca29d4799da27164394a8c59da067a0522241fe..fc0cc0d6d11cbec37b87004f3a56cc4c5495bc72 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -499,7 +499,7 @@ static void show_one_mergetag(struct commit *commit,
        int status, nth;
        size_t payload_size, gpg_message_offset;
 
-       hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), oid.hash);
+       hash_object_file(extra->value, extra->len, typename(OBJ_TAG), &oid);
        tag = lookup_tag(&oid);
        if (!tag)
                return; /* error message already given */