Do not flag internal references as suspicious

RELEASE_NOTES.md

@@ -1,2 +1,4 @@
 * Update core R5 code to v4.6.0 (breaking changes to questionnaire, concept map, and other resources that are less important to core)
 * Fix compartment definitions of ListResource.source and subject for R3 and R4
+* Snapshot generator: fix problem checking types on logical models
+* Do not flag internal references as suspicious

org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/InstanceValidator.java

@@ -2757,7 +2757,7 @@ public class InstanceValidator extends BaseValidator implements IResourceValidat
   }
 
   private boolean isSuspiciousReference(String url) {
-    if (!assumeValidRestReferences || url == null || Utilities.isAbsoluteUrl(url)) {
+    if (!assumeValidRestReferences || url == null || Utilities.isAbsoluteUrl(url) || url.startsWith("#")) {
       return false;
     }
     String[] parts = url.split("\\/");