$ git clone -n https://src.fedoraproject.org/rpms/rtklib.git /var/lib/mock/f41-build-775120-13519/root/chroot_tmpdir/scmroot/rtklib
Cloning into '/var/lib/mock/f41-build-775120-13519/root/chroot_tmpdir/scmroot/rtklib'...
$ git fetch origin 361aa81fa9cb48b866991711ba6ae746d40136ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rtklib
 * [new ref]         361aa81fa9cb48b866991711ba6ae746d40136ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 361aa81 Eliminate use of obsolete %patchN syntax (#2283636)