[FIXED] std::list asserted in cChunkMap::RemoveClientFromChunks()

[xoft]

This might actually be the case. And it might also be the cause for the crashes we get reported "from russia".

Setting m_bDestroyed to true as the last thing Destroy() does should fix that.

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I'll do it.

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Yeah, destructor didn't lock m_CSChunkLists, so it could have done that. Fixing both.