修复格式刷报错

src/controllers/selection.js

@@ -1769,6 +1769,7 @@ const selection = {
                             delete value["m"];
                             delete value["f"];
                             delete value["spl"];
+                            delete value["cid"];
 
                             if(value.ct && value.ct.t == 'inlineStr'){
                                 delete value.ct;