Merge pull request #55820 in DEC/fineui from master to feature/x

* commit 'd7f7312618d6858cbcf00feaa3897c70a3c1b5ed':
  无jira任务 fix：默认值

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

@@ -12,6 +12,7 @@ BI.SelectTextTrigger = BI.inherit(BI.Trigger, {
             baseCls: "bi-select-text-trigger",
             height: 24,
             allowClear: false,
+            valueFormatter: BI.emptyFn,
         });
     },