$ git clone -n https://src.fedoraproject.org/rpms/echolinux.git /var/lib/mock/f41-build-1111487-20153/root/chroot_tmpdir/scmroot/echolinux
Cloning into '/var/lib/mock/f41-build-1111487-20153/root/chroot_tmpdir/scmroot/echolinux'...
$ git fetch origin d7c603c5c92b9bbbca800a2df78359dc582c4cae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/echolinux
 * [new ref]         d7c603c5c92b9bbbca800a2df78359dc582c4cae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7c603c convert GPL+ license to SPDX