$ git clone -n https://src.fedoraproject.org/rpms/python-oscrypto.git /var/lib/mock/f42-build-3403687-45135/root/chroot_tmpdir/scmroot/python-oscrypto
Cloning into '/var/lib/mock/f42-build-3403687-45135/root/chroot_tmpdir/scmroot/python-oscrypto'...
$ git fetch origin d1c9539ba707498dab9549e555646aca3607c0e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-oscrypto
 * [new ref]         d1c9539ba707498dab9549e555646aca3607c0e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1c9539 Orphaned for 6+ weeks