Fix very unlikely case when user right clicks the VM in the exact moment he

deletes it.

qubesmanager/qube_manager.py

@@ -1219,6 +1219,7 @@ class VmManagerWindow(ui_qubemanager.Ui_VmManagerWindow, QtGui.QMainWindow):
 
     @QtCore.pyqtSlot('const QPoint&')
     def open_context_menu(self, point):
+        try:
             vm = self.get_selected_vm()
 
             # logs menu
@@ -1244,6 +1245,8 @@ class VmManagerWindow(ui_qubemanager.Ui_VmManagerWindow, QtGui.QMainWindow):
 
             self.logs_menu.setEnabled(not menu_empty)
             self.context_menu.exec_(self.table.mapToGlobal(point))
+        except exc.QubesPropertyAccessError:
+            pass
 
     @QtCore.pyqtSlot('QAction *')
     def show_log(self, action):