HorizonNet commented on a change in pull request #248: NIFIREG-227 
GitFlowPersistenceProvider option to clone repo on startup
URL: https://github.com/apache/nifi-registry/pull/248#discussion_r348787014
 
 

 ##########
 File path: 
nifi-registry-core/nifi-registry-framework/src/main/java/org/apache/nifi/registry/provider/flow/git/GitFlowMetaData.java
 ##########
 @@ -131,6 +135,56 @@ private Repository openRepository(final File 
gitProjectRootDir) throws IOExcepti
         return builder.build();
     }
 
+    private static boolean hasAtLeastOneReference(Repository repo) {
+        logger.info(repo.toString());
+        for (Ref ref : repo.getAllRefs().values()) {
+            if (ref.getObjectId() == null)
 
 Review comment:
   Add curly braces.

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