Incorrect text position on multiple xs

[netil]

Description

With the combination of candlestick + xs option, make shape's data text label incorrectly positioned, which depends different x axis than the candlestick.

Steps to check or reproduce

bb.generate({
    data: {
        xs: { data1: 'x', data2: 'x2' },
        columns: [
            ['x', '2021-02-20', '2021-02-22'],
            ['x2', '2021-02-24', '2021-02-27'],
            [
            'data1',
                { open: 1300, high: 1369, low: 1200, close: 1339, volume: 100 },
                { open: 1348, high: 1371, low: 1271, close: 1320 },
            ],
            ['data2', 1500, 1111]
        ],
        types: {
            data1: 'candlestick',
            data2: 'bar'
        },
        labels: true
    },
    axis: {
        x: {
            type: 'timeseries',
            tick: {
                format: '%Y-%m-%d',
            }      
        }
    }
});