o unique element whose value is nil</td><td bgcolor="blue">invalid</td><td bgcolor="blue">invalid</td><td bgcolor="blue">true</td></tr><tr><td>msData/identityConstraint/idH012.xml</td><td>TEST :Identity-constraint Definition Schema Component : keyref category, keyref fields are defined in a different order than referred key fields</td><td bgcolor="blue">invalid</td><td bgcolor="blue">invalid</td><td bgcolor="blue">true</td></tr><tr><td>msData/identityConstraint/idH015.xml</td><td>TEST :Identity-constraint D