$ git clone -n https://src.fedoraproject.org/rpms/gqrx.git /var/lib/mock/f38-build-side-42-init-devel-732729-27574/root/chroot_tmpdir/scmroot/gqrx
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-732729-27574/root/chroot_tmpdir/scmroot/gqrx'...
$ git fetch origin 8cd479ebcbcb794e3b1f324d9d35cd6e551dbec3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gqrx
 * [new ref]         8cd479ebcbcb794e3b1f324d9d35cd6e551dbec3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cd479e Rebuilt for new volk