fixed variable networks with external trigger not being put into the same...

fixed variable networks with external trigger not being put into the same TriggerFanOut (which is required since they should be in the same TransferGroup)

include/Application.h

@@ -127,8 +127,9 @@ namespace ChimeraTK {
       /** List of constant variable nodes */
       std::list<VariableNetworkNode> constantList;
       
-      /** Map of trigger sources to their corresponding TriggerFanOuts */
-      std::map<boost::shared_ptr<mtca4u::TransferElement>, boost::shared_ptr<TriggerFanOut>> triggerMap;
+      /** Map of trigger sources to their corresponding TriggerFanOuts. Note: we need to use the plain pointer as a
+       *  key, since the shared pointer objects would not be identical even when pointing to the same target. */
+      std::map<mtca4u::TransferElement*, boost::shared_ptr<TriggerFanOut>> triggerMap;
 
       /** Create a new, empty network */
       VariableNetwork& createNetwork();

src/Application.cc

@@ -446,7 +446,7 @@ void Application::typedMakeConnection(VariableNetwork &network) {
       if(useExternalTrigger) {
         // if external trigger is enabled, use externally triggered threaded FanOut
         auto triggerNode = network.getExternalTriggerImpl();
-        auto triggerFanOut = triggerMap[triggerNode];
+        auto triggerFanOut = triggerMap[triggerNode.get()];
         if(!triggerFanOut) {
           triggerFanOut = boost::make_shared<TriggerFanOut>(triggerNode);
           internalModuleList.push_back(triggerFanOut);