message: Adding 0D case to VectorFEBoundaryTangentLFIntegrator
diff: @@ -626,12 +626,17 @@ void VectorFEBoundaryTangentLFIntegrator::AssembleRHSElementVect(
  {
  Tr.Jacobian().MultTranspose(f_loc, f_hat);
  }
  - else
  + else if (dim == 1)
  {
  const DenseMatrix & J = Tr.Jacobian();
  f_hat(0) = J(0,0) * f_loc(0) + J(1,0) * f_loc(1);
  f_hat(1) = f_loc(2);
  }
  + else
  + {
  + f_hat(0) = f_loc(1);
  + f_hat(1) = f_loc(2);
  + }
  Swap<double>(f_hat(0), f_hat(1));
  f_hat(0) = -f_hat(0);
  