Groups with groupedColumns

[pm4r]

When I try to use groups with groupedColumns, headers don't align well with columns - they are shifted to the left.
You can reproduce it by running code from https://komarovalexander.github.io/ka-table/#/grouping
And adding following to table props:

groupedColumns= {[{
        key: 'groupedcolumn1',
        title: 'Group 1',
        columnsKeys: ['name', 'country']
}]}