Whoops! Should stockholders have voted as separate classes on that charter amendment?

What happened – A recent Delaware chancery court decision has called into question consolidated voting on charter amendments by some companies with multiple classes of common stock. In Garfield v. , ., the court concluded that a voting structure was invalid where it provided for holders of class A and class B common stock to vote as a single class to, among other things, authorize an increase in the number of authorized shares of class A.
Source: Whoops! Should stockholders have voted as separate classes on that charter amendment?