message: Minor cleanup of getPermalinkConstructor
diff: @@ -287,8 +287,9 @@ export function isPermalinkHost(host: string): boolean {
  }
  function getPermalinkConstructor(): PermalinkConstructor {
  - if (SdkConfig.get()['permalinkPrefix'] && SdkConfig.get()['permalinkPrefix'] !== matrixtoBaseUrl) {
  - return new RiotPermalinkConstructor(SdkConfig.get()['permalinkPrefix']);
  + const riotPrefix = SdkConfig.get()['permalinkPrefix'];
  + if (riotPrefix && riotPrefix !== matrixtoBaseUrl) {
  + return new RiotPermalinkConstructor(riotPrefix);
  }
  return new SpecPermalinkConstructor();
  