If SX-message does not exist - always flag as updated

Author: lassetyr

src/main/java/no/rutebanken/anshar/data/Situations.java

@@ -322,8 +322,7 @@ public Collection<PtSituationElement> addAll(String datasetId, List<PtSituationE
             String existingChecksum = checksumCache.get(key);
             timingTracer.mark("checksumCache.get");
             boolean updated;
-//            if (existingChecksum != null && situationElements.containsKey(key)) { // Checksum not compared if actual situation does not exist
-            if (existingChecksum != null) {
+            if (existingChecksum != null && situationElements.containsKey(key)) { // Checksum not compared if actual situation does not exist
                 //Exists - compare values
                 updated =  !(currentChecksum.equals(existingChecksum));
             } else {