[xacml] v0.13 schema typos

In draft-xacml-v0.13 and in schema v0.13b.xsd, I think there are typos in the following definitions:  Shouldn't the lines marked "!" be xs:choice?  One element of each choice should be the name of or a pointer to the entity, while the other is the actual entity.  	<xs:complexType name="PolicySetDesignatorType"> !		<xs:sequence> 			<xs:element name="policySetId" type="xs:anyURI" minOccurs="0"/> 			<xs:element name="policySetAssertion" type="saml:AssertionType"/> !		</xs:sequence> 	</xs:complexType>  	<xs:complexType name="PolicyDesignatorType"> !		<xs:sequence> 			<xs:element name="policyId" type="xs:anyURI" minOccurs="0"/> 			<xs:element name="policyAssertion" type="saml:AssertionType"/> !		</xs:sequence> 	</xs:complexType>  	<xs:complexType name="RuleDesignatorType"> !		<xs:sequence> 			<xs:element name="ruleId" type="xs:anyURI" minOccurs="0"/> 			<xs:element name="ruleDigest" minOccurs="0"> 				<xs:complexType> 					<xs:attribute name="digestAlgId" type="xs:string" default="SHA-1"/> 					<xs:attribute name="base64Digest" type="xs:string"/> 				</xs:complexType> 			</xs:element> !		</xs:sequence> 	</xs:complexType>

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Anne H. Anderson
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