message: Screen: Verify state in main command apply loop.
diff: @@ -447,8 +447,12 @@ void Screen::write(char const * _data, size_t _size)
  handler_.commands().clear();
  parser_.parseFragment(_data, _size);
  + state_->verifyState();
  for (Command const& command : handler_.commands())
  + {
  visit(*this, command);
  + state_->verifyState();
  + }
  if (onCommands_)
  onCommands_(handler_.commands());
  