[Bug libstdc++/52433] [C++11] debug mode iterators need to move

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52433

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-02-29 16:37:43 UTC ---
The problem exists in all active branches and isn't a regression, so I'll
implement a swap asap but it isn't urgent for 4.7.0