$ git clone -n https://src.fedoraproject.org/rpms/golang-github-axgle-mahonia.git /var/lib/mock/f45-build-11750-434/root/chroot_tmpdir/scmroot/golang-github-axgle-mahonia
Cloning into '/var/lib/mock/f45-build-11750-434/root/chroot_tmpdir/scmroot/golang-github-axgle-mahonia'...
$ git fetch origin 7c34d3bedfbbf4cf62bab16c398176d43439e69e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-axgle-mahonia
 * [new ref]         7c34d3bedfbbf4cf62bab16c398176d43439e69e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c34d3b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild