$ git clone -n https://src.fedoraproject.org/rpms/openeuclide.git /var/lib/mock/f41-build-1037921-18820/root/chroot_tmpdir/scmroot/openeuclide
Cloning into '/var/lib/mock/f41-build-1037921-18820/root/chroot_tmpdir/scmroot/openeuclide'...
$ git fetch origin 0353b4957d4d70a646da0658c8da9fbf66c3c744:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openeuclide
 * [new ref]         0353b4957d4d70a646da0658c8da9fbf66c3c744 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0353b49 Eliminate use of obsolete %patchN syntax (#2283636)