message: Fix a bug in SetupEA in DGTraceIntegrator
diff: @@ -211,6 +211,7 @@ void DGTraceIntegrator::SetupEA(const FiniteElementSpace &fes,
  {
  SetupPA(fes, type);
  nf = fes.GetNFbyType(type);
  + if (nf==0) { return; }
  const Array<double> &B = maps->B;
  if (dim == 1)
  {
  