This is caused by the switch from HashMap to Map in #825. I think it's because the affected shape definitions are now full of Ptr instead of real structures, so the code which decides which instances to derive no longer excludes Read where it previously did.
This is caused by the switch from
HashMaptoMapin #825. I think it's because the affected shape definitions are now full ofPtrinstead of real structures, so the code which decides which instances to derive no longer excludesReadwhere it previously did.