$ git clone -n https://src.fedoraproject.org/rpms/golang-github-prometheus-alertmanager.git /var/lib/mock/f38-build-side-42-init-devel-909602-28689/root/chroot_tmpdir/scmroot/golang-github-prometheus-alertmanager
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-909602-28689/root/chroot_tmpdir/scmroot/golang-github-prometheus-alertmanager'...
$ git fetch origin 14b0d4618925b66b728488ef6cab4e886de21d86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-prometheus-alertmanager
 * [new ref]         14b0d4618925b66b728488ef6cab4e886de21d86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14b0d46 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild