In September of this year, JPMorgan helped Coherent Corp—a maker of lasers and optical equipment—refinance some of its debt with a new $1.25 billion private credit loan and a $700 million “revolving” credit facility. The deal contained a newly trendy clause in its legal paperwork: a “J.Crew blocker.” The term refers to a 2017 incident in which the preppy clothing chain, under pressure from its creditors, utilized a “trap door” maneuver in which $250 million of its trademarks, including the name “J.Crew,” ...