Fix reading the primary key property of resolved entities #383
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This change fixes an issue where, when reading the
PrimaryKeyproperty of an entity which was resolved from an abstract manifest (with theidentifiedBypurpose on an attribute), the value cannot be retrieved.When
FetchTraitReferenceArgumentValuereturns the value of the argument for the resolvedis.identifiedBytrait, it returns either astringor aCdmAttributeReference. However, the subsequent process was looking to cast to aCdmTypeAttributeDefinition, which is not a compatible type. Since the only thing the code needs from that object is the name, it is safe to cast to theCdmObjectinstead and call the underlyingFetchObjectDefinitionName()method.This change makes the cast to
CdmObjectand returns the value successfully.A unit test which addresses this situation is also included in the changes.