1. Do a search
2. Do 'Edit & Tag'(a) (or 'Edit & Tag in a new window')(b) to one of the search items.
3. Update and list topics.
4. The following happens depending on whether you chose (a) or (b).
(a). You are returned to a search result of just the item you modified, losing your original search.
(b). Close the new window and click on a second search result to 'Edit & Tag in a new widnow'). You are taken to the empty Topic Search screen.
Fixed in 20110809-0941
Not being able to return to a previous search is by design, but you can now edit multiple topics in new windows from a search.