With one justice dissenting on the scope of the merger doctrine — in a case with unusual maneuvers involving (1) a 2011 consent judgment ordering Patrick W. Kane to pay $783,000 to SFG Capital; (2) a 2012 promissory note in which William Platt agreed to pay $1.2 million to Kane; (3) a 2016 turnover order that commanded Kane to assign the “Platt note” to SFG, with a proviso for returning the note to Kane …