[Bug c++/88026] Explicit deduction guide fails for move-only type

[toe-ger at web dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88026

--- Comment #2 from toe-ger at web dot de ---
Workaround that seems to generally work:
Change deduction guide to

template <class T>
S(T&&)->S<std::remove_reference<T>>;