$ git clone -n https://github.com/xcp-ng-rpms/neon.git /var/lib/mock/v8.3-u-pcoval2-11167-29575/root/chroot_tmpdir/scmroot/neon
Cloning into '/var/lib/mock/v8.3-u-pcoval2-11167-29575/root/chroot_tmpdir/scmroot/neon'...
$ git fetch origin 435599e2177043aa42320cf9836a35beeeae326b:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/neon
 * [new ref]         435599e2177043aa42320cf9836a35beeeae326b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 435599e bump release for test build