Asserts that every flag originates from the same registry as head.
Registries are compared by reference, so two distinct registries with
identical keys are still considered different. This guards operators
against combining bits that have incompatible meanings.
Asserts that every flag originates from the same registry as
head.Registries are compared by reference, so two distinct registries with identical keys are still considered different. This guards operators against combining bits that have incompatible meanings.