unborn = !strcmp(rev, "HEAD") && get_oid("HEAD", &oid);
if (unborn) {
/* reset on unborn branch: treat as reset to empty tree */
- hashcpy(oid.hash, EMPTY_TREE_SHA1_BIN);
+ oidcpy(&oid, the_hash_algo->empty_tree);
} else if (!pathspec.nr) {
struct commit *commit;
if (get_oid_committish(rev, &oid))