Merge pull request #171806 in DEC/fineui from master to feature/x

* commit '291a41a6a427b079e3bec6a0b90398446f1c0e26':
  chore: 优化代码

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

@@ -60,7 +60,7 @@ BI.SelectTextTrigger = BI.inherit(BI.Trigger, {
             };
         }
 
-        val = BI.isArray(val) ? val : [val];
+        val = BI.isArray(val) ? val.slice() : [val];
 
         var result = [];