Data Item always found!

[dasymington]

I'm used to UR sometimes not finding data items that I think it should find, but now I've discovered it finds a particular data item almost regardless of what I search for. The text data item has 72 words in it yet it has 862 auto-generated keywords. It seems to have included as keywords every value I've ever entered into certain user-defined string attributes.

How can I get it to re-generate the keywords properly? I've tried Synchronize, but that fails because there's no URL; the item is based on a text type template.