$ git clone -n https://src.fedoraproject.org/rpms/psi4.git /var/lib/mock/f41-build-side-1-3134478-39756/root/chroot_tmpdir/scmroot/psi4
Cloning into '/var/lib/mock/f41-build-side-1-3134478-39756/root/chroot_tmpdir/scmroot/psi4'...
$ git fetch origin 8c8b93ecd0135076090d7abfa93860c0a0c8ce6a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/psi4
 * [new ref]         8c8b93ecd0135076090d7abfa93860c0a0c8ce6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c8b93e Need another patch snippet elsewhere in the build system