$ git clone -n https://src.fedoraproject.org/rpms/parallel.git /var/lib/mock/f41-build-side-1-2650380-27586/root/chroot_tmpdir/scmroot/parallel
Cloning into '/var/lib/mock/f41-build-side-1-2650380-27586/root/chroot_tmpdir/scmroot/parallel'...
$ git fetch origin bc5a88ff367c50734900416fc4ce0b743ba80af0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/parallel
 * [new ref]         bc5a88ff367c50734900416fc4ce0b743ba80af0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc5a88f convert license to SPDX