fix loop

src/graphRegex/GraphFsmInterpreter.cpp

@@ -6,7 +6,7 @@ using namespace Aidge;
 GraphFsmInterpreter::GraphFsmInterpreter(const std::string graphMatchExpr,std::vector<std::shared_ptr<ConditionalInterpreter>>&nodesCondition):mParser(graphMatchExpr){
     mActGroupe = 0;
 
-    for (const auto obj : nodesCondition) {
+    for (const auto &obj : nodesCondition) {
         if(mNodesCondition.find(obj->getKey()) ==mNodesCondition.end()){
              mNodesCondition[obj->getKey()] = obj;
         }else{

src/graphRegex/GraphRegex.cpp

@@ -7,7 +7,7 @@ void GraphRegex::setKeyFromGraph(std::shared_ptr<GraphView> ref){
     for (const NodePtr& node : ref->getNodes()) {
         std::string type =  node->type();
         bool isIn = false;
-        for(const auto test:mAllTest){
+        for(const auto &test:mAllTest){
             if(test->getKey() == type){
                 isIn = true;
                 break;