message: 2D Get_I2b fix
diff: @@ -54,7 +54,8 @@ public:
  MFEM_HOST_DEVICE inline double Get_I2b() // det(J)
  {
  - return J[0]*J[3] - J[1]*J[2];
  + double sign_detJ;
  + return Get_I2b(sign_detJ);
  }
  MFEM_HOST_DEVICE inline double Get_I2() // det(J)^{2}
  