Fix Ctrl+Tab

Amends f6d57999d8

That patch accidentally clears the document list before opening the
selected editor, instead of the other way round.

Change-Id: Ia694fe009b6922b2257da787346d3505f533a0c4
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/coreplugin/editormanager/openeditorswindow.cpp

@@ -155,8 +155,8 @@ OpenEditorsWindow::OpenEditorsWindow(QWidget *parent)
 
 void OpenEditorsWindow::selectAndHide()
 {
-    setVisible(false);
     selectEditor(m_editorView->currentItem());
+    setVisible(false);
 }
 
 void OpenEditorsWindow::setVisible(bool visible)