I'm not sure posting these really serve any purpose, as previous bug reports (http://forum.virtuemart.net/index.php?topic=100945.0) are left ignored, but what the hell:
Go to the Shopper field list in the backend
Filter for Title and fire the query
Works nicely
Now disable Title
Ignores the title filter and shows all fields again
Interesting, in fact sometimes we need this behaviour, sometimes another one. Here I tend to say it is even nicer when you see the whole list agian, while it is stupid when you choosed a category in the product edit list. So for me it is not a reason to take action directly now, but we may define this later a bit better.
Okay, thanks...not a big issue, of course, just noticed it after having to click "Go" 20 times to toggle 4 fields (4 x 5 little green checks per field) to unpublished. :)