pfSense

I don't know if this is due to the local implementation of Redmine here, or a bug to pass upstream to Redmine's authors.

If you try to filter issues by adding the filter "Author" IS "<<me>>" and click "Apply", it says "Author cannot be blank".

If you add "Author" IS "<<me>>" and something else (I added "% complete >= 0") and click "Apply", it's fine.
If you add "Author" IS "<<me>>" and something else (I added "% complete >= 0") and click "Apply", and then, after applying, delete the second criterion to just leave "Author IS <<me>>" then it's also fine.