message: MatrixChat: Stop the crawler function and delete the index when logging out.
diff: @@ -1221,7 +1221,15 @@ export default createReactClass({
  /**
  * Called when the session is logged out
  */
  - _onLoggedOut: function() {
  + _onLoggedOut: async function() {
  + const platform = PlatformPeg.get();
  +
  + if (platform.supportsEventIndexing()) {
  + console.log("Seshat: Deleting event index.");
  + this.crawlerRef.cancel();
  + await platform.deleteEventIndex();
  + }
  +
  this.notifyNewScreen('login');
  this.setStateForNewView({
  view: VIEWS.LOGIN,
  