CP - Prevent testing nullified camera info request

src/Camera/QGCCameraManager.cc

@@ -110,12 +110,14 @@ QGCCameraManager::_handleHeartbeat(const mavlink_message_t &message)
     if(_vehicleReadyState && _vehicle->id() == message.sysid && _vehicle->defaultComponentId() != message.compid) {
         //-- First time hearing from this one?
         if(!_cameraInfoRequest.contains(message.compid)) {
+            qCDebug(CameraManagerLog) << "Hearbeat from " << message.compid;
             CameraStruct* pInfo = new CameraStruct(this);
             pInfo->lastHeartbeat.start();
             _cameraInfoRequest[message.compid] = pInfo;
             //-- Request camera info
             _requestCameraInfo(message.compid);
         } else {
+            if(_cameraInfoRequest[message.compid]) {
                 //-- Check if we have indeed received the camera info
                 if(_cameraInfoRequest[message.compid]->infoReceived) {
                     //-- We have it. Just update the heartbeat timeout
@@ -138,6 +140,7 @@ QGCCameraManager::_handleHeartbeat(const mavlink_message_t &message)
                 }
             }
         }
+    }
 }
 
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