[Bug libstdc++/91541] [C++17] Exception specification of operator= of node-based containers may be broken

[frankhb1989 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91541

--- Comment #1 from frankhb1989 at gmail dot com ---
Allocator-extended constructors with explicit exception specifications may also
have the value_type/node mismatch problems.