Fix bleve fuzziness search (#33078)

Close #31565

modules/indexer/code/indexer.go

@@ -123,13 +123,12 @@ func Init() {
 			for _, indexerData := range items {
 				log.Trace("IndexerData Process Repo: %d", indexerData.RepoID)
 				if err := index(ctx, indexer, indexerData.RepoID); err != nil {
-					unhandled = append(unhandled, indexerData)
 					if !setting.IsInTesting {
 						log.Error("Codes indexer handler: index error for repo %v: %v", indexerData.RepoID, err)
 					}
 				}
 			}
-			return unhandled
+			return nil // do not re-queue the failed items, otherwise some broken repo will block the queue
 		}
 
 		indexerQueue = queue.CreateUniqueQueue(ctx, "code_indexer", handler)