[Bug libstdc++/81338] stringstream remains empty after being moved into multiple times

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81338

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-07-06
     Ever confirmed|0                           |1
      Known to fail|                            |6.3.0, 7.1.0, 8.0