$ git clone -n https://src.fedoraproject.org/rpms/partio.git /var/lib/mock/f40-build-2674429-67708/root/chroot_tmpdir/scmroot/partio
Cloning into '/var/lib/mock/f40-build-2674429-67708/root/chroot_tmpdir/scmroot/partio'...
$ git fetch origin bb8c71ca6379555008c84212c3de53f0d76eed7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/partio
 * [new ref]         bb8c71ca6379555008c84212c3de53f0d76eed7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb8c71c Update to partio 1.17.3 (rhbz#2267492)