$ git clone -n https://src.fedoraproject.org/rpms/golang-github-pquerna-ffjson.git /var/lib/mock/f38-build-side-42-init-devel-658970-26618/root/chroot_tmpdir/scmroot/golang-github-pquerna-ffjson
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-658970-26618/root/chroot_tmpdir/scmroot/golang-github-pquerna-ffjson'...
$ git fetch origin fc0ffb5d0137f6e35794f109ee3a90ce83bb3f40:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-pquerna-ffjson
 * [new ref]         fc0ffb5d0137f6e35794f109ee3a90ce83bb3f40 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc0ffb5 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild