[galaxy-dev] Possible bug: Tags in a workflow gets duplicated hundreds of times

Hi, I have run into an issue with a tag being duplicated hundreds of times each time I open, edit or clone a workflow. I have tried to manually remove them, but each time the tag gets inserted somehow and duplicated each time I edit the workflow. By now there are hundreds of copies of the tags at it makes loading and running the workflow very slow. Is there a way to remove a tag from the system somehow? I am willing to dig into the database with some SQL statement but not sure where to start... Thanks Thon