$ git clone -n https://src.fedoraproject.org/rpms/golang-github-prometheus-alertmanager.git /var/lib/mock/f40-build-2348188-60138/root/chroot_tmpdir/scmroot/golang-github-prometheus-alertmanager
Cloning into '/var/lib/mock/f40-build-2348188-60138/root/chroot_tmpdir/scmroot/golang-github-prometheus-alertmanager'...
$ git fetch origin 788280a173680044e41c6e19f62cb9f567fb5c8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-prometheus-alertmanager
 * [new ref]         788280a173680044e41c6e19f62cb9f567fb5c8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 788280a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild