selectpicker重置按钮无法正常工作

Question

我有几个下拉选项，还有一个连接到它的重置按钮。我遇到的问题是当我在下拉菜单中选择几个选项，然后点击重置时，所有其他下拉菜单都会丢失它们的值...我不太熟悉jquery / javascript等但是希望有一些洞察数据为何仅在此实例中丢失

    //-------------------
var changeEvent = 0;
var lastSeq = 0;
$scope.change = function(oldValue){
//    processed = [];
    changeEvent = 1;
    if( oldValue != null && oldValue.length==0 ){ /* we have an un-select */
        if( K.findAllSelected().size() == 0 ){
            $( '.selectpicker option' ).show();
            $( '.selectpicker' ).selectpicker( 'refresh' );
            changeEvent = 0;
        } else {
            changeEvent = 2;
        }
        console.log( " unselect " );
    }
    lastSeq = this.item_query;
    Query.setFirstSelection( lastSeq );
    Query.setSelectionText();
};

$('body').click(function(e) {
    if ( changeEvent===0 ||
        $(e.target).closest('.btn-group').length !== 0) {
        return;
    }

    var methDate = new Date();
    var currentVisible = K.getVisibleArray( lastSeq );

    K.hideAll();
    Query.reinventSelected( lastSeq, changeEvent );

    K.showSelected();
    K.showThisArraySeq( lastSeq, currentVisible );
    changeEvent = 0;
    Query.setSelectionText();

    $( '.selectpicker' ).selectpicker( 'refresh' );

    var endDate = new Date();
    console.log("change():" + (endDate - methDate)/1000 +" s");
});

$scope.reset = function(){
    $( '.selectpicker' ).selectpicker( 'deselectAll' );
    $( '.selectpicker' ).selectpicker( 'show' );
    $( '.selectpicker' ).selectpicker( 'refresh' );

    $( 'select[id^=query_select]' ).children().end().find( 'option' ).show();
    $( 'select[id^=query_select]' ).selectpicker( 'refresh' );
    $( '.input-daterange input' ).each(function() { $(this).datepicker("clearDates"); });
    $rootScope.$broadcast('sql', K.selectedFields());
    Query.setFirstSelection(0);
    Query.setSelectionText();

}