[Rd] Problems with S4 methods dispatching on `...` (aka dotsMethods)

[Andrzej Oleś]

Hi all,

I recently encountered some unexpected behavior with S4 generics
dispatching on `...`, which I described in
http://stackoverflow.com/questions/43499203/use-callnextmethod-with-dotsmethods

TL;DR: `callNextMethod()` doesn't work in methods dispatching on `...`, and
arguments of such methods are resolved differently than the arguments of
methods dispatching on formal arguments.

Could this indicate a potential problem with the implementation of the
`...` dispatch?

Cheers,
Andrzej

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