== Why is this an issue?
Having multiple prefixes for the same namespace is highly likely to confuse users and maintainers of the schema.
=== Noncompliant code example
[source,xml]
----
...
----
=== Compliant solution
[source,xml]
----
...
----
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
(visible only on this page)
=== Message
Remove this redundant namespace listing; this namespace has already been assigned the prefix "xxx".
=== Highlighting
Primary: ``++xmlns:xxx=yyy"++``
Secondary: inital definition/prefix assignment
endif::env-github,rspecator-view[]