$ git clone -n https://src.fedoraproject.org/rpms/knetwalk.git /var/lib/mock/f41-build-side-1-2647418-27302/root/chroot_tmpdir/scmroot/knetwalk
Cloning into '/var/lib/mock/f41-build-side-1-2647418-27302/root/chroot_tmpdir/scmroot/knetwalk'...
$ git fetch origin 5a655d48aa6476cce1353f4ae6d9d698129eb5d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knetwalk
 * [new ref]         5a655d48aa6476cce1353f4ae6d9d698129eb5d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a655d4 convert license to SPDX