x/pkgsite: packages with an excluded prefix show up in search

[suzmue]

Follow up from #57510

What is the URL of the page with the issue?

https://pkg.go.dev/search?q=pixelyte

Screenshot

What did you do?

Searched for the name of a package that has been excluded from the pkgsite results from the main pkg.go.dev page.

What did you expect to see?

No results matching codeberg.org/pixelyte

What did you see instead?

The pages for the documentation are correctly not available, but the excluded packages still appear in the results.

Interestingly, if I search from the results page, there are correctly no results (https://pkg.go.dev/search?q=pixelyte&m=package)

[ghost]

This issue seems to have resolved itself. I think it was probably just still in the cache. Somebody should close this. @suzmue