Russian citizens who may be thinking of supporting a planned protest on Sunday during the presidential election have reportedly received warnings on their mobile phones ahead of the event. The independent news website Meduza, among others, published screenshots of messages sent on Saturday from Moscow to its readers saying: “Regardless of the fact that you support the ideas of extremist organizations, we are pleased that you will be voting in Moscow.” This is followed by an invitation to take part in the election “calmly” and “without queues and provocations.” It was not initially known who wa…