Random Chitchat 2012-2016

[NiLSPACE]

Any idea why

bool cRoot::StopWorld(AString a_WorldName, AString a_MoveToWorld)
{
	if (a_WorldName == a_MoveToWorld || a_WorldName == m_pDefaultWorld->GetName())
	{
		return false;
	}
	if (m_WorldsByName[a_WorldName] == NULL)
	{
		return false;
	}
	class cCallback : public cPlayerListCallback
	{
	public:
		const char * m_NewWorld;
		cCallback(const char * a_NewWorld) : m_NewWorld(a_NewWorld) {}
		virtual bool Item(cPlayer * a_Player) override
		{
			a_Player->MoveToWorld(m_NewWorld);
			return false;
		}
	
	} a_Callback(a_MoveToWorld.c_str());
	m_WorldsByName[a_WorldName]->ForEachPlayer(a_Callback);
	m_WorldsByName[a_WorldName]->Stop();
	return true;
}

makes the server crash?
According to VS it crashes because of

AString IncomingData;
{
	cCSLock Lock(m_CSIncomingData);
	std::swap(IncomingData, m_IncomingData); // <--: This is the next statement to execute when this thread returns from the current function.
}