[Bug c++/86246] [8/9 Regression] Template dispatching error inside a template function

[nathan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86246

--- Comment #4 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
but myclass::operator double is not a template.  why would we find it as a
specialization of the templated conversion operator?  (to be clear, that maybe
what we want, but the temp.mem does not appear to be saying that)