Update bootstrap-table-select2-filter.js

fixed unclosing list issue when selected item

src/extensions/select2-filter/bootstrap-table-select2-filter.js

@@ -156,6 +156,7 @@
 
           $selectEle.select2(select2Opts);
           $selectEle.on("select2:unselecting", function (event) {
+            event.preventDefault();
             $selectEle.val(null).trigger('change');
             that.searchText = undefined;
             that.onColumnSearch(event);
@@ -267,4 +268,4 @@
   $.fn.bootstrapTable.methods.push('setFilterData');
   $.fn.bootstrapTable.methods.push('setFilterValues');
 
-}(jQuery);
+}(jQuery);