$ git clone -n https://src.fedoraproject.org/rpms/golang-github-z-division-zookeeper.git /var/lib/mock/f41-build-1036523-18736/root/chroot_tmpdir/scmroot/golang-github-z-division-zookeeper
Cloning into '/var/lib/mock/f41-build-1036523-18736/root/chroot_tmpdir/scmroot/golang-github-z-division-zookeeper'...
$ git fetch origin efb10e8c60ba82eb204129ae8ce2a5b991dcb193:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-z-division-zookeeper
 * [new ref]         efb10e8c60ba82eb204129ae8ce2a5b991dcb193 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at efb10e8 Fix FTBFS