[Bug libstdc++/63199] Inserting std::wregex to std::vector looses some std::wregex values

[stefan at schweter dot it]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63199

--- Comment #1 from Stefan Schweter <stefan at schweter dot it> ---
Created attachment 33457
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33457&action=edit
GDB trace for regex_vectpr