[Bug libstdc++/79136] read outside of buffer in char* std::__copy_move::__copy_m(unsigned char const*, unsigned char const*, char*) (stl_algobase.h)

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79136

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Be sure to include which version of the draco code to check out; master?