message: Get filtration from face when it's the same as simplex
diff: @@ -106,6 +106,9 @@ class Cech_blocker {
  #if CGAL_VERSION_NR >= 1050000000
  if(exact_) CGAL::exact(sph.second);
  #endif
  + if(k != sc_ptr_->null_key())
  + radius = sc_ptr_->filtration(face_opposite_vertex.first);
  + else
  radius = std::sqrt(cast_to_fv(sph.second));
  #ifdef DEBUG_TRACES
  std::clog << "center: " << sph.first << ", radius: " << radius << std::endl;
  