The chair's personal thoughts on this—and I can be held accountable, of course, to committee structure—but the chair certainly does not feel it contradicts. It amends. It does not eliminate. It does not change. It modifies, which is an amendment. In this case, if you have an amendment, you have a subamendment. The chair's ruling is that this is a subamendment and so it is admissible as it is.
On February 26th, 2015. See this statement in context.