`FullForm` strips the context for any symbol that can be found on the `Append[$ContextPath, $Context]`: ``FullForm[System`List]`` is displayed `List`, but I would like to get ``System`List`` for debugging and learning purposes.

I tried `$ContextPath = {}` but then the whole front-end stops working [1].

Is there another way besides `Hold[...] /. x_Symbol :> (Context@x <> SymbolName@x)`? Is there any case where this would not work?

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[1] I find it strange that the internal code of the frontend relies on the "usability features" `$Context` and `$ContextPath`. Why doesn't it use the full symbol names for any code it uses (or produces)? IMO `$ContextPath = {}` should hurt *you* (having to type the full name of any symbols not in `$Context`), but not the system. If it really needs ``System` `` to operate properly, it should not allow setting `$ContextPath = {}` just like it is not allowed to set `$Context` to something invalid.