Message
foo should not have text (all data is in attributes)
Explanation
Some elements express their data in enclosed text, for example:
<id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
Others express their data in attributes, for example:
<link href="http://example.org/"/>
This may create confusion.
Solution
Check the specification (example) for the correct way to encode this element.
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