Merge pull request #1032 from PowerGridModel/fix/current-sensor-branch3

Current sensor: Fix when on side_3 of Branch3

Author: mgovers

power_grid_model_c/power_grid_model/include/power_grid_model/main_core/input.hpp

@@ -121,7 +121,7 @@ inline void add_component(MainModelState<ComponentContainer>& state, ForwardIter
                 case branch3_2:
                     return get_component<Branch3>(state, measured_object).node(side_2);
                 case branch3_3:
-                    return get_component<Branch3>(state, measured_object).node(side_2);
+                    return get_component<Branch3>(state, measured_object).node(side_3);
                 default:
                     throw MissingCaseForEnumError{std::format("{} item retrieval", GenericCurrentSensor::name),
                                                   measured_terminal_type};