Always place the follower EnumFormat or Format as internalFormat on
the EnumPortConfig and PortConfig respectively.
This ways, internalFormat always refers to the follower formats and
the format is the external format after (optional) conversion by the
adapter.
The idea was to keep some sort of compatibility with older versions but
that doesn't really apply because the format was never used on
EnumPortConfig and interalFormat didn't exist.
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