Res Estoppel? Collateral Judicata?

Shine v. Williams-Sonoma, Inc., No B277513 (D2d4 May 29, 2018)

Named Plaintiff in this class action was a class member in Class Action #1, a prior wage and hour case against his Employer. Class Action #1 settled and, as a member of the settlement class, Plaintiff got some money. But now he’s a Named Plaintiff in Class Action #2, another wage and hour class action, against the same employer, with roughly the same class period, but on a new legal theory that wasn’t really litigated in Class Action #1. So the question is, do claim or issue preclusion, or the release entered in Class Action #1, bar Class Action #2?

The answer is yes. And the opinion gets that right. But it’s rather hard to follow and it does some weird stuff to getting to a result.