message: In ParMesh::NonconformingRefinement, delete face-neighbor-data so
  that it can be reconstructed correctly when needed.
  This should resolve GitHub issue
diff: @@ -2988,6 +2988,8 @@ void ParMesh::NonconformingRefinement(const Array<Refinement> &refinements,
  "serial Mesh)");
  }
  + DeleteFaceNbrData();
  +
  // NOTE: no check of !refinements.Size(), in parallel we would have to reduce
  // do the refinements
  