[Bug c++/113640] 'deducing this' lambda invoked multiple times unexpectedly

[hewillk at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113640

--- Comment #1 from 康桓瑋 <hewillk at gmail dot com> ---
Noted that changing `this auto self` to `this auto&& self` will get the
expected results