$ git clone -n https://src.fedoraproject.org/rpms/mingw-gsl.git /var/lib/mock/f41-build-1037583-18804/root/chroot_tmpdir/scmroot/mingw-gsl
Cloning into '/var/lib/mock/f41-build-1037583-18804/root/chroot_tmpdir/scmroot/mingw-gsl'...
$ git fetch origin 643a33a299392e2f5d92a2d33e3572f6226ae01e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-gsl
 * [new ref]         643a33a299392e2f5d92a2d33e3572f6226ae01e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 643a33a Eliminate use of obsolete %patchN syntax (#2283636)