Index: ../../../git/apache/jackrabbit-oak/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- ../../../git/apache/jackrabbit-oak/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java	(revision d230746e7802277b1bb3bd35d222b143110b7a12)
+++ ../../../git/apache/jackrabbit-oak/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java	(revision )
@@ -280,7 +280,17 @@
             if (blob instanceof BlobStoreBlob) {
                 return ((BlobStoreBlob) blob).getBlobId();
             }
+            
             String id;
+
+            String reference = blob.getReference();
+            if(reference != null){
+                id = blobStore.getBlobId(reference);
+                if(id != null){
+                    return id;
+                }
+            }
+
             try {
                 id = createBlob(blob.getNewStream()).getBlobId();
             } catch (IOException e) {