$ git clone -n https://src.fedoraproject.org/rpms/golang-github-cnf-structhash.git /var/lib/mock/f40-build-2573879-62241/root/chroot_tmpdir/scmroot/golang-github-cnf-structhash
Cloning into '/var/lib/mock/f40-build-2573879-62241/root/chroot_tmpdir/scmroot/golang-github-cnf-structhash'...
$ git fetch origin c5c9bd6b8609c6a28bddd0c299c9ed80b89eeef8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-cnf-structhash
 * [new ref]         c5c9bd6b8609c6a28bddd0c299c9ed80b89eeef8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5c9bd6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild