Joel Dice f0129665c6 fix corruption of old revisioins in PersistentSet
In PersistentSet.remove, we were modifying the child node in place
instead of making a copy to update, which would corrupt older
revisions.  This commit ensures that we always create a copy if
necessary.
2010-07-30 12:23:41 -06:00
..
2009-05-25 23:31:13 -06:00
2010-04-14 09:26:50 -06:00