If you try to search by tag in the OPAC with the UseQueryParser system preference turned off you get an error: Can't locate YAML/XS.pm in @INC at (eval 1903) line 1.
Owen, could you please provide steps to reproduce? I cannot seem to be able to reproduce it. I have tried both UseQueryParser on and off (the description of the bug is a bit confusing, I assumed the title was the right one). And did: - Populated my database with lots of records. - Logged with my username on the OPAC (bootstrap) - Added a tag "Tomas" to a record. - Went to my personal page, and clicked on "Your tags" (shouldn't it be "My tags" ? :-D) - Then clicked on the tag I created, and it showed the record.