1. Visit https://github.com/sindresorhus/refined-github/issues
2. Notice error TypeError: undefined is not an object (evaluating 'sourceItem.cloneNode')

Probably the selector needs to be updated

https://github.com/sindresorhus/refined-github/blob/e5a7fa02be0f56f034ffaf3bca7fdb523d3ef90f/source/features/conversation-filters.tsx#L9