sha1_to_hex(sha1));
if (obj->type == OBJ_TAG) {
obj = deref_tag(obj, refname, 0);
+ if (!obj)
+ die("git-show-ref: bad tag at ref %s (%s)", refname,
+ sha1_to_hex(sha1));
hex = find_unique_abbrev(obj->sha1, abbrev);
printf("%s %s^{}\n", hex, refname);
}