$ git clone -n https://src.fedoraproject.org/rpms/ProDy.git /var/lib/mock/f40-build-2255919-54267/root/chroot_tmpdir/scmroot/ProDy
Cloning into '/var/lib/mock/f40-build-2255919-54267/root/chroot_tmpdir/scmroot/ProDy'...
$ git fetch origin b4949247e9acc0774e747641bcd6bf947929576b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ProDy
 * [new ref]         b4949247e9acc0774e747641bcd6bf947929576b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b494924 Release 4.2.1