When I was last year giving my wife a Get (far in advance of our civil divorce, BTW), the rabbonim of my Bes Din dismissed the Lieberman Clause as "that Conservative thing." So, despite that I was halachically married, with a kosher ketubah that I knowingly agreed to, our agreement held no weight in their eyes. Only the older parts pertained.
When I was last year giving my wife a Get (far in advance of our civil divorce, BTW), the rabbonim of my Bes Din dismissed the Lieberman Clause as "that Conservative thing." So, despite that I was halachically married, with a kosher ketubah that I knowingly agreed to, our agreement held no weight in their eyes. Only the older parts pertained.