message: Fix console error in `hide-disabled-milestone-sorter`
diff: @@ -10,7 +10,12 @@ function hide(): void {
  }
  function init(): void {
  - observeElement('.js-milestone-issues-container', hide);
  + const issuesContainer = select('.js-milestone-issues-container');
  +
  + // Issues container doesn't exist for milestones without (open) issues
  + if (issuesContainer) {
  + observeElement(issuesContainer, hide);
  + }
  }
  features.add({
  