Filtering Tags doesn't work

Filtering for Tags does not work. Clicking on a tag results in the following error:

Die Suche konnte nicht durchgeführt werden. Fehler: Excess operators (and) in 'BlogPostForm AND fields[name='Tags'].value=~'\bfile sharing\b' ' at ' '

-- PatrickHenke - 29 Apr 2011

I suspect this occurs on some systems. For instance, in our test blog on foswiki.org I also get this error, but not on my private machine.

Tasks.Item10691.

-- ArthurClemens - 29 Apr 2011