$ git clone -n https://src.fedoraproject.org/rpms/knetwalk.git /var/lib/mock/f40-build-2146739-50889/root/chroot_tmpdir/scmroot/knetwalk
Cloning into '/var/lib/mock/f40-build-2146739-50889/root/chroot_tmpdir/scmroot/knetwalk'...
$ git fetch origin 018d571d54b98d2d367928c1aac8cfb36ee8f6bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knetwalk
 * [new ref]         018d571d54b98d2d367928c1aac8cfb36ee8f6bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 018d571 24.01.85