$ git clone -n https://src.fedoraproject.org/rpms/onionscan.git /var/lib/mock/f40-build-2255042-54238/root/chroot_tmpdir/scmroot/onionscan
Cloning into '/var/lib/mock/f40-build-2255042-54238/root/chroot_tmpdir/scmroot/onionscan'...
$ git fetch origin b2d9c2f6ed56bb80790d28d2f533a1f25b111556:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/onionscan
 * [new ref]         b2d9c2f6ed56bb80790d28d2f533a1f25b111556 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2d9c2f Remove deprecated %patchN syntax