$ git clone -n https://src.fedoraproject.org/rpms/python-r128gain.git /var/lib/mock/f41-build-side-2-python-2718662-30599/root/chroot_tmpdir/scmroot/python-r128gain
Cloning into '/var/lib/mock/f41-build-side-2-python-2718662-30599/root/chroot_tmpdir/scmroot/python-r128gain'...
$ git fetch origin 40c092ddb425fd07a07dc360d757de6b341f5d7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-r128gain
 * [new ref]         40c092ddb425fd07a07dc360d757de6b341f5d7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 40c092d Dead upstream, users should migrate to rsgain