bug

@@ -462,12 +462,21 @@ class Mail {
 
 
             // 更新描述
-            $db->update(listsSql::$table,[
-                'description'  =>  $description,
-                'is_file'   =>  MailFun::isBodyFile($body)
-            ],dbWhere([
-                'id'    =>  $id
-            ]));
+            try {
+                $db->update(listsSql::$table,[
+                    'description'  =>  @base64_encode($description) ? $description : '',
+                    'is_file'   =>  MailFun::isBodyFile($body)
+                ],dbWhere([
+                    'id'    =>  $id
+                ]));
+            }catch (\Throwable $e){
+                $db->update(listsSql::$table,[
+                    'is_file'   =>  MailFun::isBodyFile($body)
+                ],dbWhere([
+                    'id'    =>  $id
+                ]));
+            }
+
         }
 
         return true;