diff --git a/hapi-fhir-jpaserver-mdm/src/test/java/ca/uhn/fhir/jpa/mdm/interceptor/MdmEventIT.java b/hapi-fhir-jpaserver-mdm/src/test/java/ca/uhn/fhir/jpa/mdm/interceptor/MdmEventIT.java
index 39ec89b4c7d..cafbdebbff2 100644
--- a/hapi-fhir-jpaserver-mdm/src/test/java/ca/uhn/fhir/jpa/mdm/interceptor/MdmEventIT.java
+++ b/hapi-fhir-jpaserver-mdm/src/test/java/ca/uhn/fhir/jpa/mdm/interceptor/MdmEventIT.java
@@ -80,7 +80,19 @@ public class MdmEventIT extends BaseMdmR4Test {
 		MdmLinkEvent linkChangeEvent = myMdmHelper.getAfterMdmLatch().getLatchInvocationParameterOfType(MdmLinkEvent.class);
 		assertNotNull(linkChangeEvent);
 
-		// MdmTransactionContext ctx = myMdmMatchLinkSvc.updateMdmLinksForMdmSource(patient2, createContextForUpdate(patient2.getIdElement().getResourceType()));
+		ourLog.info("Got event: {}", linkChangeEvent);
+
+		long expectTwoPossibleMatchesForPatientTwo = linkChangeEvent.getMdmLinks()
+			.stream()
+			.filter(l -> l.getSourceId().equals(patient2.getIdElement().toVersionless().getValueAsString()) && l.getMatchResult() == MdmMatchResultEnum.POSSIBLE_MATCH)
+			.count();
+		assertEquals(2, expectTwoPossibleMatchesForPatientTwo);
+
+		long expectOnePossibleDuplicate = linkChangeEvent.getMdmLinks()
+			.stream()
+			.filter(l -> l.getMatchResult() == MdmMatchResultEnum.POSSIBLE_DUPLICATE)
+			.count();
+		assertEquals(1, expectOnePossibleDuplicate);
 
 		List<MdmLinkJson> mdmLinkEvent = linkChangeEvent.getMdmLinks();
 		assertEquals(3, mdmLinkEvent.size());
@@ -122,10 +134,9 @@ public class MdmEventIT extends BaseMdmR4Test {
 		assertEquals(1, linkChangeEvent.getMdmLinks().size());
 
 		MdmLinkJson link = linkChangeEvent.getMdmLinks().get(0);
-		assertEquals(patient1.getResourceType() + "/" + patient1.getIdElement().getIdPart(), link.getSourceId());
+		assertEquals(patient1.getIdElement().toVersionless().getValueAsString(), link.getSourceId());
 		assertEquals(getLinkByTargetId(patient1).getGoldenResourcePid(), new IdDt(link.getGoldenResourceId()).getIdPartAsLong());
 		assertEquals(MdmMatchResultEnum.MATCH, link.getMatchResult());
 	}
 
-
 }
diff --git a/hapi-fhir-server-mdm/src/main/java/ca/uhn/fhir/mdm/api/MdmLinkJson.java b/hapi-fhir-server-mdm/src/main/java/ca/uhn/fhir/mdm/api/MdmLinkJson.java
index 424298418b4..d21f8deada6 100644
--- a/hapi-fhir-server-mdm/src/main/java/ca/uhn/fhir/mdm/api/MdmLinkJson.java
+++ b/hapi-fhir-server-mdm/src/main/java/ca/uhn/fhir/mdm/api/MdmLinkJson.java
@@ -175,4 +175,22 @@ public class MdmLinkJson implements IModelJson {
 	public void setRuleCount(Long theRuleCount) {
 		myRuleCount = theRuleCount;
 	}
+
+	@Override
+	public String toString() {
+		return "MdmLinkJson{" +
+			"myGoldenResourceId='" + myGoldenResourceId + '\'' +
+			", mySourceId='" + mySourceId + '\'' +
+			", myMatchResult=" + myMatchResult +
+			", myLinkSource=" + myLinkSource +
+			", myCreated=" + myCreated +
+			", myUpdated=" + myUpdated +
+			", myVersion='" + myVersion + '\'' +
+			", myEidMatch=" + myEidMatch +
+			", myLinkCreatedNewResource=" + myLinkCreatedNewResource +
+			", myVector=" + myVector +
+			", myScore=" + myScore +
+			", myRuleCount=" + myRuleCount +
+			'}';
+	}
 }