message: docview: fix
diff: @@ -173,9 +173,6 @@ export class DocViewProvider implements Disposable {
  /** Called by the user clicking a link. */
  async open(url?: string) {
  - if (this.currentURL === url) {
  - return;
  - }
  if (url) {
  this.backstack.push(this.currentURL);
  this.forwardstack = [];
  