PVS-Studio warning V519 for QT

bool GSuggestCompletion::eventFilter(QObject *obj, QEvent *ev)
{
  ....
  switch (key) {
  case Qt::Key_Enter:
  case Qt::Key_Return:
    doneCompletion();
    consumed = true;

  case Qt::Key_Escape:
    editor->setFocus();
    popup->hide();
    consumed = true;

  case Qt::Key_Up:
  case Qt::Key_Down:
  case Qt::Key_Home:
  case Qt::Key_End:
  case Qt::Key_PageUp:
  case Qt::Key_PageDown:
    break;
  ....
}

This suspicious code was found in QT project by PVS-Studio static code analyzer.
Warning message is:
V519 The 'consumed' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 110, 115. googlesuggest.cpp 115

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/