fix findSimilarChunk max is not updated

1 files changed, 2 insertions, 1 deletions

diff --git a/repo.go b/repo.go
index 03bf9fc..b080cf0 100644
--- a/repo.go
+++ b/repo.go
@@ -516,12 +516,13 @@ func (r *Repo) findSimilarChunk(chunk Chunk) (*ChunkId, bool) {
 			count += 1
 			logger.Infof("found %d %d time(s)", id, count)
 			if count > max {
+				max = count
 				similarChunk = id
 			}
 			similarChunks[*id] = count
 		}
 	}
-	return similarChunk, similarChunk != nil
+	return similarChunk, max > 0
 }
 
 func (r *Repo) tryDeltaEncodeChunk(temp BufferedChunk) (Chunk, bool) {