Rapid reloading on all project pages

On my Taguette instance (running via the contrib apache2 config), since updating to version 1.4.1, whenever any user accesses any project page, Taguette refreshes repeatedly, making it impossible to code documents etc. In the log on the client I get a repeated message "Server sent signal to reload" which is emitted by the following code in taguette.js. Have I misconfigured something / do you have any idea how this could be fixed?

[...]

function longPollForEvents() {
  // If we've been inactive for 10min, pause polling for now
  if(windowLastActive !== null && (new Date() - windowLastActive > 600000)) {
    console.log("Browser window inactive, stop polling");
    polling = false;
    return;
  }

  polling = true;
  lastPoll = Date.now();
  getJSON(
    '/api/project/' + project_id + '/events',
    {from: last_event}
  )
  .then(function(result) {
    if(result.reload) {
      console.log("Server sent signal to reload");
      window.location.reload();
      return;
    }

[...]