always call setDefaultPayload

Author: littleaj

core/src/main/java/com/microsoft/applicationinsights/internal/heartbeat/HeartbeatDefaultPayload.java

@@ -68,7 +68,8 @@ public Boolean call() throws Exception {
             continue;
           }
 
-          populatedFields = populatedFields || payloadProvider.setDefaultPayload(disabledFields, provider).call();
+          boolean fieldsAreSet = payloadProvider.setDefaultPayload(disabledFields, provider).call();
+          populatedFields = populatedFields || fieldsAreSet;
         }
         return populatedFields;
       }