feature: searcher只使能最后一次搜索的值

src/base/combination/searcher.js

@@ -183,7 +183,7 @@ BI.Searcher = BI.inherit(BI.Widget, {
             keyword: keyword,
             selectedValues: o.adapter && o.adapter.getValue()
         }, function (searchResult, matchResult) {
-            if (!self._stop) {
+            if (!self._stop && keyword === self.editor.getValue()) {
                 var args = [].slice.call(arguments);
                 if (args.length > 0) {
                     args.push(keyword);