Brad Pitt is standing by his decision to present ex Angelina Jolie with a non-disclosure agreement for the Château Miraval deal as the famous former flames continue to duke it out over their winery years after their split, RadarOnline.com has learned. In newly filed court docs, lawyers for Pitt noted the exes had both agreed an NDA was necessary to “protect the reputation of the Miraval brand” while disputing claims made by Jolie. Jolie previously said she opted out of selling to Pitt for $54 million because she suspected a non-disparagement clause was a thinly veiled “unconscionable” attempt …