.

wcfs/wcfs.go

@@ -811,6 +811,9 @@ retry:
 
 	wg, ctx := errgroup.WithContext(context.TODO())	// XXX ctx = ?
 	for file, δfile := range δF.Change {
+		// XXX needed?
+		file.δtail.Append(δF.Rev, δfile.Blocks.Elements())
+
 		file := file
 		for blk := range δfile.Blocks {
 			blk := blk