$ git clone -n https://src.fedoraproject.org/rpms/xarchiver.git /var/lib/mock/f29-build-4471-1046/root/thebuilddir/tmp/scmroot/xarchiver
Cloning into '/var/lib/mock/f29-build-4471-1046/root/thebuilddir/tmp/scmroot/xarchiver'...
$ git reset --hard 29b719d419eeaf85a9336f8c7a0080113b5a3fa7
HEAD is now at 29b719d - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild