#820 Delta solid solve yields the expected result.

Sources/ModelInstances/UnderDevelopment/Poromechanics/ImplicitStepFluid/InnerLoop/VariationalFormulation.hxx

@@ -417,30 +417,30 @@ namespace HappyHeart
                         delta_residual.Scale(-1., __FILE__, __LINE__);
                     }
                     
-//                    decltype(auto) tangent_varf = GetTangentSolidVarf();
-//                    
-//                    delta_solid_varf_solver_->SolveLinear(tangent_varf,
-//                                                          tangent_varf,
-//                                                          GetDeltaResidual(),
-//                                                          GetNonCstDeltaSolution(),
-//                                                          __FILE__, __LINE__);
-//                    
-//                    
-//                    
-//                    {
-//                        decltype(auto) delta_sol = GetDeltaSolution();
-//                        const auto filename = parent::GetOutputDirectory(numbering_subset)
-//                        + "/"
-//                        + DifferentialPreffix(differential::yes)
-//                        + "solid_varf_sol_" + GetIterationTag() + ".m";
-//                        
-//                        delta_sol.View(parent::MpiHappyHeart(),
-//                                               filename,
-//                                               __FILE__, __LINE__,
-//                                               PETSC_VIEWER_ASCII_MATLAB);
-//                        
-//                    }
-//
+                    decltype(auto) tangent_varf = GetTangentSolidVarf();
+                    
+                    delta_solid_varf_solver_->SolveLinear(tangent_varf,
+                                                          tangent_varf,
+                                                          GetDeltaResidual(),
+                                                          GetNonCstDeltaSolution(),
+                                                          __FILE__, __LINE__);
+                    
+                    
+                    
+                    {
+                        decltype(auto) delta_sol = GetDeltaSolution();
+                        const auto filename = parent::GetOutputDirectory(numbering_subset)
+                        + "/"
+                        + DifferentialPreffix(differential::yes)
+                        + "solid_varf_sol_" + GetIterationTag() + ".m";
+                        
+                        delta_sol.View(parent::MpiHappyHeart(),
+                                               filename,
+                                               __FILE__, __LINE__,
+                                               PETSC_VIEWER_ASCII_MATLAB);
+                        
+                    }
+
                     
 
                     // \todo #820 At the moment, I accept my norm is not the same as Bruno's; see what Petsc gives when

Sources/ModelInstances/UnderDevelopment/Poromechanics/LocalVariationalOperatorInstances/SolidDeltaResidual.hxx

@@ -226,7 +226,7 @@ namespace HappyHeart
                 
                 #ifndef NDEBUG
                 invariant_holder.Reset();
-                #endif // NDEBUG           
+                #endif // NDEBUG
             }