$ git clone -n https://src.fedoraproject.org/rpms/accel-ppp.git /var/lib/mock/f41-build-852757-166469/root/chroot_tmpdir/scmroot/accel-ppp
Cloning into '/var/lib/mock/f41-build-852757-166469/root/chroot_tmpdir/scmroot/accel-ppp'...
$ git fetch origin 88e5d0b0e3b202a14fe8e84c22cdaaa709bcb625:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/accel-ppp
 * [new ref]         88e5d0b0e3b202a14fe8e84c22cdaaa709bcb625 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88e5d0b Oop