Do not display the priority menu if the torrent is being seeded (closes #697035)

src/properties/propertieswidget.cpp

@@ -489,6 +489,7 @@ void PropertiesWidget::displayFilesListMenu(const QPoint&){
     actRename = myFilesLlistMenu.addAction(IconProvider::instance()->getIcon("edit-rename"), tr("Rename..."));
     myFilesLlistMenu.addSeparator();
   }
+  if(static_cast<torrent_handle>(h).is_seed()) {
     QMenu subMenu;
     subMenu.setTitle(tr("Priority"));
     subMenu.addAction(actionNot_downloaded);
@@ -496,6 +497,7 @@ void PropertiesWidget::displayFilesListMenu(const QPoint&){
     subMenu.addAction(actionHigh);
     subMenu.addAction(actionMaximum);
     myFilesLlistMenu.addMenu(&subMenu);
+  }
   // Call menu
   const QAction *act = myFilesLlistMenu.exec(QCursor::pos());
   if(act) {