ericmbarnard/Knockout-Validation — pull request #107 by TerenceLewis (2012-08-05 18:05:29+00:00)
Title: Bugfix for isValidatable with undefined parameter

It looks like I'm still getting instances where I somehow end up passing a valueAccessor which evaluates to undefined, which breaks the isValidatable function because that function doesn't check that o is not undefined.