[Bug libstdc++/49559] [C++0x] stable_sort calls self-move-assignment operator

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49559

--- Comment #8 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-06-28 
13:38:06 UTC ---
For inplace_merge the problem happens with the _GLIBCXX_MOVE3 calls in
__move_merge, at some point __first == __result != __last.