#820 Put back the Newton FP loop (only one call was done previously...).

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

@@ -71,7 +71,19 @@ namespace HappyHeart
                 auto& newton_fp_index = variable_holder.newton_fp_index;
                 newton_fp_index = 0u;
                 
+                
+                double absolute_error = 1.e20;
+                double relative_error = 1.e20;
+
+                
+                while (absolute_error > 1.e-10 && relative_error > 1.e-6 && newton_fp_index < 2u) // \todo #820 Should not remain hardcoded!
+                    // \todo #820 iteration index sup value is obviously temporary for dev purposes...
+                    // \todo Absolute and relative error should be recomputed!
+                {
+                    std::cout << "NEWTON FP LOOP" << std::endl;
                     current_norm = inner_varf.Perform();
+                    ++newton_fp_index;
+                }
 
                 // Update fluidmass, velocity fluid and pressure.
                 Wrappers::Petsc::MatMult(inner_varf.GetMonolithic2Mass().GetInterpolationMatrix(),