$ git clone -n https://src.fedoraproject.org/rpms/octave-parallel.git /var/lib/mock/f41-build-side-1-2969487-35819/root/chroot_tmpdir/scmroot/octave-parallel
Cloning into '/var/lib/mock/f41-build-side-1-2969487-35819/root/chroot_tmpdir/scmroot/octave-parallel'...
$ git fetch origin fa9eac66fa21ebcd3bc8d609862a1f8483643105:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-parallel
 * [new ref]         fa9eac66fa21ebcd3bc8d609862a1f8483643105 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa9eac6 convert GPLv3+ license to SPDX