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This is the schema block: <xsd:simpleType name="st"> <xsd:union memberTypes="xsd:int xsd:string st2"> </xsd:union> </xsd:simpleType> <xsd:simpleType name="st2"> <xsd:union memberTypes="st"/> </xsd:simpleType> Circular definitions have been detected for simple type ':st'. This means that ':st' is contained in its own hierachy, which is an error. However, it is assumed that this schema is valid because the scenario checks for validity. The scenario used should be one that checks INvalidity.
*** Bug 5125 has been marked as a duplicate of this bug. ***
Not clear what test author was thinking here. . .