Don't update properties on object with update callback

[eryx67]

Probably, you haven't try to update object properties if update callback exists, especially
when some of parents are arrays and you can't set mappings for nested objects
(fullPropertyName has indexes in it, for example `[3].children[5].children[0].id').

[sagacity]

Thanks, can you also add a unit test to demonstrate the issue? (should be failing before merge, passing after merge)

[smrq]

Unit test for this issue (I think it's the same one, the proposed patch causes the test to pass)

Failing w/out patch: http://jsfiddle.net/smrKyu/ndwfz/6/
Passing w/ patch: http://jsfiddle.net/smrKyu/ndwfz/

In CoffeeScript because it's a simplified view of the issue in my Coffee codebase.

[sagacity]

Thanks! I'll take a look asap.