$ git clone -n https://src.fedoraproject.org/rpms/wxMaxima.git /var/lib/mock/f45-build-38535-725/root/chroot_tmpdir/scmroot/wxMaxima
Cloning into '/var/lib/mock/f45-build-38535-725/root/chroot_tmpdir/scmroot/wxMaxima'...
$ git fetch origin 17b9de70d56bcdf95a097c9d119f42adf65368d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wxMaxima
 * [new ref]         17b9de70d56bcdf95a097c9d119f42adf65368d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17b9de7 Update to 26.08.0 upstream release