It seems that there is an issue when calling callNextMethod() inside a
method without "..." in its formals but defined on a generic WITH "..." in
its formals. Whenever that method is called with an argument that is not
explicitly named in the generic formals, we get the following error:

setClass("A")
setClass("B", contains = "A")

setGeneric("fun", function(x, ...) standardGeneric("fun"))

setMethod("fun", "A", function(x, y) x)
setMethod("fun", "B", function(x, y) callNextMethod())

fun(new("B"), "foo")

Error in callNextMethod() :
  in processing 'callNextMethod', found a '...' in the matched call, but no
corresponding '...' argument

Is this a misuse of callNextMethod?

Thanks,
Michael

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