$ git clone -n https://src.fedoraproject.org/rpms/gnuradio.git /var/lib/mock/f38-build-side-42-init-devel-691559-26825/root/chroot_tmpdir/scmroot/gnuradio
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-691559-26825/root/chroot_tmpdir/scmroot/gnuradio'...
$ git fetch origin 98998f2427cbee03718524615a46f1d4c5eb39c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnuradio
 * [new ref]         98998f2427cbee03718524615a46f1d4c5eb39c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98998f2 Rebuilt for new uhd