Hey Nick --
This looked weird to me, so I tried the same thing -- and get the same result. However, I've noticed something interesting.
If I filter like this:
...Then the quick filter shows (United Blingdom). Of course there is no such place, and what we're showing is wrong. If I filter on a "good value":
...then it works fine.
So is there indeed a value of "9 0648" in your database field?
I probably would open a support case on this either way as this looks suspect to me - but wanted to give you something else to try first...
Thanks Russell, that was it, had a space that was missing and that threw it off. Thank you very much!