message: Prevent the permalink creator from causing cascading failure
diff: @@ -83,6 +83,14 @@ export class RoomPermalinkCreator {
  }
  load() {
  + if (!this._room || !this._room.currentState) {
  + // Under rare and unknown circumstances it is possible to have a room with no
  + // currentState, at least potentially at the early stages of joining a room.
  + // To avoid breaking everything, we'll just warn rather than throw as well as
  + // not bother updating the various aspects of the share link.
  + console.warn("Tried to load a permalink creator with no room state");
  + return;
  + }
  this._updateAllowedServers();
  this._updateHighestPlUser();
  this._updatePopulationMap();
  