$ git clone -n https://src.fedoraproject.org/rpms/golang-github-hashicorp-serf.git /var/lib/mock/f40-build-2522609-61800/root/chroot_tmpdir/scmroot/golang-github-hashicorp-serf
Cloning into '/var/lib/mock/f40-build-2522609-61800/root/chroot_tmpdir/scmroot/golang-github-hashicorp-serf'...
$ git fetch origin 8074c5fe9b7d26833a9610a0092384bba50e09f4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-hashicorp-serf
 * [new ref]         8074c5fe9b7d26833a9610a0092384bba50e09f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8074c5f Rebuild for golang 1.22.0