$ git clone -n https://src.fedoraproject.org/rpms/pyotherside.git /var/lib/mock/f41-build-814034-148849/root/chroot_tmpdir/scmroot/pyotherside
Cloning into '/var/lib/mock/f41-build-814034-148849/root/chroot_tmpdir/scmroot/pyotherside'...
$ git fetch origin 8a954597a339e5e473dfd3f156bab15aab0b4d6f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pyotherside
 * [new ref]         8a954597a339e5e473dfd3f156bab15aab0b4d6f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a95459 Update to 1.6.1, fixes rhbz#2251082