[Bug c++/109247] [13/14 Regression] optional o; o = {x}; wants to use explicit optional(U) constructor since r13-6765-ga226590fefb35ed6

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109247

--- Comment #12 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I suppose we should add a porting_to.html note about this (in light of Bug
109663).