message: Code review: Keep the comment that returning true is strange
diff: @@ -765,7 +765,7 @@ class Simplex_tree {
  auto last = std::end(Nsimplex);
  if (first == last)
  - return { null_simplex(), true }; // ----->>
  + return { null_simplex(), true }; // FIXME: false would make more sense to me.
  // Copy before sorting
  // Thread local is not available on XCode version < V.8 - It will slow down computation
  