TypeError: Unable to get property 'form' of undefined or null reference

https://sentry.gitlap.com/gitlab/gitlabcom-clientside/issues/30927/

TypeError: Unable to get property 'form' of undefined or null reference
  at e (./filtered_search/filtered_search_manager.js:11:4)
  at this (./dispatcher.js:127:12)
  at i (./dispatcher.js:73:6)
  at Anonymous function (./dispatcher.js:66:4)
...
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