Datagrid custom resetSort changes emptyMsg

[Wojak]

I found a bug using a method from 2015 to reset sorting.
If my emptyMsg is set to anything but "" then it returns it to "".

Code:

$.extend($.fn.datagrid.methods, {
    resetSort: function (jq, param) {
        return jq.each(function () {
            var state = $.data(this, 'datagrid');
            var opts = state.options;
            var dc = state.dc;
            var header = dc.header1.add(dc.header2);
            header.find('div.datagrid-cell').removeClass('datagrid-sort-asc datagrid-sort-desc');
            param = param || {};
            opts.sortName = param.sortName;
            opts.sortOrder = param.sortOrder || 'asc';
            if (opts.sortName) {
                var names = opts.sortName.split(',');
                var orders = opts.sortOrder.split(',');
                for (var i = 0; i < names.length; i++) {
                    var col = $(this).datagrid('getColumnOption', names[i]);
                    header.find('div.' + col.cellClass).addClass('datagrid-sort-' + orders[i]);
                }
            }
            $(this).datagrid('reload');
        })
    }
});

After using this method also the emptyMsg doesn't disappear for datagrid view.

[jarry]

The 'emptyMsg' will display after loading empty rows. Please make sure if the data is empty after calling the 'reload' method.

[Wojak]

After refreshing the data is there, but 'emptyMsg' sometimes does not disappear. After it stays on the screen, I checked what 'emptyMsg' is in the settings and from text such as '123' it changes to ''. And after it stays on the screen and changes to '', it doesn't disappear after trying to refresh all the time

[jarry]

Please look at this example https://www.jeasyui.com/demo/test/test21.html. It works fine.