$ git clone -n https://src.fedoraproject.org/rpms/gr-hpsdr.git /var/lib/mock/f41-build-858586-168464/root/chroot_tmpdir/scmroot/gr-hpsdr
Cloning into '/var/lib/mock/f41-build-858586-168464/root/chroot_tmpdir/scmroot/gr-hpsdr'...
$ git fetch origin 38e83f626fe35a0aa171fecc730d9d2eec696857:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gr-hpsdr
 * [new ref]         38e83f626fe35a0aa171fecc730d9d2eec696857 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38e83f6 Rebuilt for new gnuradio