[Bug c++/81420] When a reference is bound to a member in the base of a temporary, lifetime of the temporary is not extended

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81420

--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> ---
Created attachment 44050
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44050&action=edit
untested hackish patch

This seems to help a bit, but it doesn't feel like the right approach.