I already forked the ui-repo, found the correct file to fix it and even found the place where I should add a query to the search form to search only for communities if you start searching from the communities page.
But then I saw that this change is already done in that file. I double checked the HTML on my instance and there it’s broken. I checked the history of the page and see it has been fixed 18 hours before I started looking into it.
All my hard work for nothing.
That type of bug is what is called “low hanging fruit”. With lots of active contributors, such bugs will get fixed pretty quickly.