update claim change addition when old claims don't have value and upd…

…ated claim set has empty value

components/org.wso2.carbon.identity.scim2.common/src/main/java/org/wso2/carbon/identity/scim2/common/impl/SCIMUserManager.java

@@ -5508,6 +5508,13 @@ private void updateUserClaims(User user, Map<String, String> oldClaimList,
                 simpleMultiValuedClaimsToBeAdded.put(key, Arrays.asList(newClaimList.get(key).split(separator)));
             }
         }
+        /*
+        If the newClaimList has a claim with empty value and the claim is not exist in the oldClaimList, remove that
+        claim from newClaimList.
+         */
+        newClaimList.entrySet()
+                .removeIf(entry -> entry.getValue().isEmpty() && !oldClaimList.containsKey(entry.getKey()));
+
         /*
         Prepare user claims expect multi-valued claims to be added, deleted and modified.
         Remove simple multi-valued claims URIS from existing claims and updated user's claims.