$ git clone -n https://src.fedoraproject.org/rpms/golang-github-prometheus-alertmanager.git /var/lib/mock/f40-build-1420041-23565/root/chroot_tmpdir/scmroot/golang-github-prometheus-alertmanager
Cloning into '/var/lib/mock/f40-build-1420041-23565/root/chroot_tmpdir/scmroot/golang-github-prometheus-alertmanager'...
$ git fetch origin 9e01dce4976166e8e0d5bbc77b07cc59cc40cd8a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-prometheus-alertmanager
 * [new ref]         9e01dce4976166e8e0d5bbc77b07cc59cc40cd8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e01dce Rebuild for golang 1.22.0