Fix possible crash when using both share limits

Avoid possible crash in "torrent->name()" when processing seeding time of the torrent that already reached the ratio limit.

src/base/bittorrent/session.cpp

@@ -1788,6 +1788,7 @@ void Session::processShareLimits()
                             torrent->pause();
                             logger->addMessage(tr("'%1' reached the maximum ratio you set. Paused.").arg(torrent->name()));
                         }
+                        continue;
                     }
                 }
             }