fix one of the dispatch algorithms

alib2common/src/core/multipleDispatch.hpp

@@ -423,7 +423,7 @@ public:
 	};
 	static ReturnType dispatch ( StaticParamType res, const FirstParameterType & first, const SecondParameterType & second ) {
-		typename std::map < std::pair < std::type_index, std::type_index >, RegistratorWrapperBase * >::iterator callback = getInstance ( ).registeredFunctions.find ( std::make_pair ( std::type_index ( typeid ( first ) ), std::type_index ( typeid ( first ) ) ) );
+		typename std::map < std::pair < std::type_index, std::type_index >, RegistratorWrapperBase * >::iterator callback = getInstance ( ).registeredFunctions.find ( std::make_pair ( std::type_index ( typeid ( first ) ), std::type_index ( typeid ( second ) ) ) );
 		if ( callback == getInstance ( ).registeredFunctions.end ( ) ) {
 			std::string firstType = std::cstringToString ( std::type_name ( typeid ( first ) ) );