NEW YORK — The Nets’ season-worst five-game slump began on Dec. 27 at Barclays Center, a 144-122 loss to the Milwaukee Bucks where the team rested Spencer Dinwiddie, Cam Johnson, Nic Claxton and Dorian Finney-Smith. Mikal Bridges and Cam Thomas only played 12 minutes in the loss. As a result of that controversial decision, Brooklyn became the first team to be fined under the NBA’s new player rest policy, receiving a $100,000 penalty on Thursday that will compound with each additional violation. “I think I’m going to keep that one for my memoirs — my true reaction to the memoirs,” head coach Ja…