Fix when the stored data is actually enough but s3api_object_list_handlers returns less than the specified limit

Signed-off-by: changlin.shi <changlin.shi@ly.com>

weed/s3api/s3api_objects_list_handlers.go

@@ -158,8 +158,10 @@ func (s3a *S3ApiServer) listFilerEntries(bucket string, originalPrefix string, m
 
 	// check filer
 	err = s3a.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
-
+		for {
+			empty := true
 			nextMarker, doErr = s3a.doListFilerEntries(client, reqDir, prefix, cursor, marker, delimiter, false, func(dir string, entry *filer_pb.Entry) {
+				empty = false
 				if entry.IsDirectory {
 					// https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectsV2.html
 					if delimiter == "/" { // A response can contain CommonPrefixes only if you specify a delimiter.
@@ -204,12 +206,18 @@ func (s3a *S3ApiServer) listFilerEntries(bucket string, originalPrefix string, m
 				return doErr
 			}
 
-		if !cursor.isTruncated {
-			nextMarker = ""
-		} else {
+			if cursor.isTruncated {
 				if requestDir != "" {
 					nextMarker = requestDir + "/" + nextMarker
 				}
+				break
+			} else if empty {
+				nextMarker = ""
+				break
+			} else {
+				// start next loop
+				marker = nextMarker
+			}
 		}
 
 		response = ListBucketResult{