Identity-constraint Definition Schema Component : keyref category, field element evaluates to an empty-node set</td><td bgcolor="green">valid</td><td bgcolor="blue">invalid</td><td bgcolor="red">true</td></tr><tr><td>msData/identityConstraint/idH004.xml</td><td>TEST :Identity-constraint Definition Schema Component : keyref category, field element evaluates to a node-set with only one member</td><td bgcolor="green">valid</td><td bgcolor="blue">invalid</td><td bgcolor="red">true</td></tr><tr><td>msData/identi