[Bug c++/78506] [c++1z] wrong value category for class decomposition

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78506

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It started to fail with r242408 and was fixed by r246273 for PR c++/80084