$ git clone -n https://src.fedoraproject.org/rpms/xblas.git /var/lib/mock/f29-build-4475-1048/root/thebuilddir/tmp/scmroot/xblas
Cloning into '/var/lib/mock/f29-build-4475-1048/root/thebuilddir/tmp/scmroot/xblas'...
$ git reset --hard a95ed1974766123fb2bd9ae5b7ce40ed1dd3ba8b
HEAD is now at a95ed19 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild