fix: group folder remove file size relocate

models/file.go

@@ -284,8 +284,10 @@ func DeleteFiles(files []*File, uid uint) error {
 			return errors.New("file size is dirty")
 		}
 
+		if file.UserID > 0 {
 			size += file.Size
 		}
+	}
 
 	if uid > 0 {
 		if err := user.ChangeStorage(tx, "-", size); err != nil {