disable delete expires s3 entry in filer

weed/server/filer_server_handlers_write_autochunk.go

@@ -330,7 +330,9 @@ func (fs *FilerServer) saveMetaData(ctx context.Context, r *http.Request, fileNa
 	}
 
 	entry.Extended = SaveAmzMetaData(r, entry.Extended, false)
-
+	if entry.TtlSec > 0 && r.Header.Get(s3_constants.SeaweedFSExpiresS3) == "true" {
+		entry.Extended[s3_constants.SeaweedFSExpiresS3] = []byte("true")
+	}
 	for k, v := range r.Header {
 		if len(v) > 0 && len(v[0]) > 0 {
 			if strings.HasPrefix(k, needle.PairNamePrefix) || k == "Cache-Control" || k == "Expires" || k == "Content-Disposition" {