Pull request #2751: 无jira任务 fix：默认值

Merge in VISUAL/fineui from ~JIMMY.CHAI/fineui:master to master

* commit '747ff3232e94a93510de07e843971c490533ef04':
  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,
         });
     },