Add target for validation only when no "availableInStores" specified

Author: ligangty

addons/promote/common/src/main/java/org/commonjava/indy/promote/validate/PromotionValidationTools.java

@@ -174,10 +174,7 @@ public StoreKey[] getValidationStoreKeys( final ValidationRequest request, final
             verifyStoreKeys.add( request.getSourceRepository().getKey() );
         }
 
-        if ( includeTarget )
-        {
-            verifyStoreKeys.add( request.getTarget() );
-        }
+
         if ( verifyStores == null )
         {
             logger.warn(
@@ -202,6 +199,11 @@ public StoreKey[] getValidationStoreKeys( final ValidationRequest request, final
             }
         }
 
+        if ( verifyStoreKeys.isEmpty() )
+        {
+            verifyStoreKeys.add( request.getTarget() );
+        }
+
         logger.debug( "Using validation StoreKeys: {}", verifyStoreKeys );
 
         return verifyStoreKeys.toArray( new StoreKey[0] );