$ git clone -n https://src.fedoraproject.org/rpms/golang-gopkg-robfig-cron-3.git /var/lib/mock/f41-build-1036614-18741/root/chroot_tmpdir/scmroot/golang-gopkg-robfig-cron-3
Cloning into '/var/lib/mock/f41-build-1036614-18741/root/chroot_tmpdir/scmroot/golang-gopkg-robfig-cron-3'...
$ git fetch origin b69956db966638badf48edb19b1da447a0e46468:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gopkg-robfig-cron-3
 * [new ref]         b69956db966638badf48edb19b1da447a0e46468 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b69956d Fix FTBFS