Candidates are displayed on the screen in duplicate about election HOT 7 OPEN

    ...
    // Load contract data
    App.contracts.Election.deployed().then(function (instance) {
      electionInstance = instance;
      return electionInstance.candidatesCount();
    }).then(function (candidatesCount) {

      // Store all promised to get candidate info
      const promises = [];
      for (var i = 1; i <= candidatesCount; i++) {
        promises.push(electionInstance.candidates(i));
      }

      // Once all candidates are received, add to dom
      Promise.all(promises).then((candidates) => {
        var candidatesResults = $("#candidatesResults");
        candidatesResults.empty();

        var candidatesSelect = $('#candidatesSelect');
        candidatesSelect.empty();

        candidates.forEach(candidate => {
          var id = candidate[0];
          var name = candidate[1];
          var voteCount = candidate[2];

          // Render candidate Result
          var candidateTemplate = "<tr><th>" + id + "</th><td>" + name + "</td><td>" + voteCount + "</td></tr>"
          candidatesResults.append(candidateTemplate);

          // Render candidate ballot option
          var candidateOption = "<option value='" + id + "' >" + name + "</ option>"
          candidatesSelect.append(candidateOption);          
        })
      });

      return electionInstance.voters(App.account);
    }).then(function (hasVoted) {
    ...

listenForAccountChange: function() {
    ethereum.on('accountsChanged', function (accounts) {
        App.account = accounts[0];
        App.render();
    })
},