[Bug libstdc++/69853] An inheriting constructor of the class that inherited std::tuple isn't called correctly

[redboltz at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69853

--- Comment #4 from Takatoshi Kondo <redboltz at gmail dot com> ---
Thank you for the comment. I understand.
I use perfect forwarding in this case.