$ git clone -n https://src.fedoraproject.org/rpms/golang-github-posener-complete.git /var/lib/mock/f40-build-2001841-44634/root/chroot_tmpdir/scmroot/golang-github-posener-complete
Cloning into '/var/lib/mock/f40-build-2001841-44634/root/chroot_tmpdir/scmroot/golang-github-posener-complete'...
$ git fetch origin 6451e0e92a565ccc76cee664092f3786c6e5c3d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-posener-complete
 * [new ref]         6451e0e92a565ccc76cee664092f3786c6e5c3d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6451e0e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild