can't sort launched parts

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From TurkeyXIII:

When the 'sort' box is unchecked at the top of the tree, there aren't any 
chaffs, mines, missiles or probes in the parts list. In 3.41 (or whatever I was 
using before) those parts were included with everything else when the box was 
unchecked. (When the box is checked those parts have their own sub-branch, 
which is expected behaviour.)

Original issue reported on code.google.com by [e-mail] on 24 Aug 2010 at 4:09