Dependency of discriminating functions on method combinations

[Didier Verna]

  Hi,

Computing an effective method depends on the generic function's method
combination. But is it also the case for computing the discriminating
function?

I don't see why it should in theory, but evidence seems to suggest
otherwise[1]. Maybe it does for technical reasons?

Thanks.


Footnotes: 
[1]  In SBCL for instance, flushing the effective method cache is not
enough for direct modifications to a generic function's method
combination to take effect on the next call.

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