I did a search for
user:25554 is:a [automata]. The resulting page claims “19 results”:
The page lists 15 results, and offers a second page:
Clicking on the link to page 2 of the results brings up this page 2 of the results, which reports “19 results: Your search returns no matches”, contradicting itself:
If there are 19 results, it should disgorge all 19. If there are fewer than 19 results, it should not report that there are 19. If there are 15 or fewer, it should not offer a link to a second page of results. In no case should the search offer a link to an empty page of results.