Merge pull request #171762 in DEC/fineui from master to feature/x

* commit '2a1bae964b4167b86de56bc4137a1a346829393b':
  chore: 优化代码

src/case/trigger/trigger.text.select.js

@@ -52,7 +52,7 @@ BI.SelectTextTrigger = BI.inherit(BI.Trigger, {
 
     _digest: function (val, items) {
         var o = this.options;
-        val = BI.isArray(val) ? val : [val];
+        val = BI.isArray(val) ? val.slice() : [val];
 
         //  提升valueFormatter的优先级
         if (o.valueFormatter !== BI.emptyFn && BI.isFunction(o.valueFormatter)) {