Merge pull request #800 from modelix/fix/typo-backwards-compatibility

fix(model-api): fix typo that breaks backwards compatibility

Author: benedekh

model-api/src/commonMain/kotlin/org/modelix/model/api/INode.kt

@@ -215,7 +215,7 @@ interface INode {
      * @return the serialized reference of the source node, if this one was created during an import
      */
     fun getOriginalReference(): String? = getPropertyValue(IProperty.fromName(NodeData.ID_PROPERTY_KEY))
-        ?: getPropertyValue(IProperty.fromName("#mpsNodeID#")) // for backwards compatibility
+        ?: getPropertyValue(IProperty.fromName("#mpsNodeId#")) // for backwards compatibility
 
     // <editor-fold desc="non-string based API">
     fun usesRoleIds(): Boolean = false