$ git clone -n https://src.fedoraproject.org/rpms/python-rlp.git /var/lib/mock/f43-build-60966627-6587062/root/chroot_tmpdir/scmroot/python-rlp
Cloning into '/var/lib/mock/f43-build-60966627-6587062/root/chroot_tmpdir/scmroot/python-rlp'...
$ git fetch origin c119c591044df1070942b5976405be3ce73c15b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rlp
 * [new ref]         c119c591044df1070942b5976405be3ce73c15b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c119c59 Don't physically remove test file