[Bug c++/90938] [9/10 Regression] Initializing array with {1} works, but not {0}

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90938

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
There is no cutoff for 9.x (well, in about 2 years from now the branch will be
closed), but the branch is used by people in the wild, so especially for
regressions from recent releases the sooner it is fixed the better.  Of course
assuming the fix is safe.