$ git clone -n https://src.fedoraproject.org/rpms/golang-github-prometheus-client.git /var/lib/mock/f39-build-1545322-36681/root/chroot_tmpdir/scmroot/golang-github-prometheus-client
Cloning into '/var/lib/mock/f39-build-1545322-36681/root/chroot_tmpdir/scmroot/golang-github-prometheus-client'...
$ git fetch origin 8fec8eca0b9de327d9a6bc8e087fd2d36d1b0e26:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-prometheus-client
 * [new ref]         8fec8eca0b9de327d9a6bc8e087fd2d36d1b0e26 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8fec8ec Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild