It used to be that when you searched a filter, the results were in the standard Alphabetical order. This is no longer the case. Now, it's case sensitive, and puts all lowercase results, after all uppercase results. For example, say if I search "banana", I'd get results for all matches in the following order:

Applebanana
Banana Apple 
Bananas
Banana 
Wants to return Banana
apple_banana
banana

Personally,I would never expect lowercase banana to come after upper case W. I confirmed with support this change was intentional and is not a bug, so I'd like to request that the alphabetical order be used again.