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Does anybody know something about this? Or did I miss something in the

I wrote:
> While working on our lua_State serialization I found that lua tables seem
> to have a metatable even if it seems that none has been set by the user or
> by our code. Is that correct? 
> Can this metatable be safely ignored and how can I distinguish this
> metatable from user defined to ignore it during serialization? (And why 
> did this metatable not have this standard metatable?)