Remove erroneous default value for system attributes.

Older eml documents may have set this explicitly, but the lack of sa default should not cause any compatibility issues.
NCEAS · Nov 26, 2018 · ea2acf7 · ea2acf7
1 parent c2f7f0e
commit ea2acf7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/xsd/eml-resource.xsd b/xsd/eml-resource.xsd
@@ -470,7 +470,7 @@
         <xs:complexType>
           <xs:simpleContent>
             <xs:extension base="xs:string">
-              <xs:attribute name="system" type="SystemType" use="optional" default="document"/>
+              <xs:attribute name="system" type="SystemType" use="optional" />
             </xs:extension>
           </xs:simpleContent>
         </xs:complexType>