[Bug c++/116369] [12/13/14/15 Regression] temporary variable bounded to const reference with mutable field incorrectly marked as rodata since r9-869-g5603790dbf233c

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116369

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Ah no, during iterator construction we do:

        this->_M_attach(const_cast<_Safe_sequence_base*>(__seq), __constant);

So that is a library bug.