$ git clone -n https://src.fedoraproject.org/rpms/kf6-kio.git /var/lib/mock/f40-build-2671024-67377/root/chroot_tmpdir/scmroot/kf6-kio
Cloning into '/var/lib/mock/f40-build-2671024-67377/root/chroot_tmpdir/scmroot/kf6-kio'...
$ git fetch origin b52075cbd8be37df6fdb4d5d3c5d0c03150b77ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kio
 * [new ref]         b52075cbd8be37df6fdb4d5d3c5d0c03150b77ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b52075c add URL to patch