add missing Schematron ID

1.1/lido-qa.xsd

@@ -101,7 +101,7 @@
                 <sch:p>Although the lido:type has been introduced for lido:objectMeasurementsSetComplexType, it should only be used for
                     lido:eventObjectMeasurementsSet in context of the EODEM application profile.</sch:p>
                 
-                <sch:rule context="lido:objectMeasurementsSet">
+                <sch:rule context="lido:objectMeasurementsSet" id="sch_objectMeasurementsSet">
                     <sch:assert role="warn" test="not(@lido:type)">
                         The only element of the complex type lido:objectMeasurementsSetComplexType holding @lido:type should be lido:eventObjectMeasurementsSet.
                     </sch:assert>