[Server] Ensure no information exchange takes place with nullptr player

apps/openmw-mp/Networking.cpp

@@ -183,6 +183,13 @@ void Networking::processPlayerPacket(RakNet::Packet *packet)
 
             player->forEachLoaded([this](Player *pl, Player *other) {
 
+                if (other == nullptr)
+                {
+                    LOG_APPEND(Log::LOG_INFO, "- Tried to exchange information with nullptr!\n- Please report this to a developer",
+                        other->npc.mName.c_str());
+                }
+                else
+                {
                     LOG_APPEND(Log::LOG_INFO, "- Started information exchange with %s",
                         other->npc.mName.c_str());
 
@@ -201,6 +208,7 @@ void Networking::processPlayerPacket(RakNet::Packet *packet)
 
                     LOG_APPEND(Log::LOG_INFO, "- Finished information exchange with %s",
                         other->npc.mName.c_str());
+                }
             });
 
             playerController->GetPacket(ID_PLAYER_POS)->Send(player);