echarts设置了containLabel后，坐标轴位置会偏移

Question

如下，我设置了多个X坐标轴，让它们重合在底部，然后设置了grid的属性containLabel为true，用来防止数值过大而超出视图。但是X轴的轴线随着我设置的X轴越多就越往上面偏移，这是什么情况呢？有什么办法能够让它不往上面偏移的方法吗？

option = {
    grid: {
        left: "0",
        right: "0",
        top: "3%",
        bottom: "0",
        containLabel: true  
    },
    xAxis: [
        {
        type: 'category',
        position: "bottom",
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },{
        type: 'category',
        position: "bottom",
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },{
        type: 'category',
        position: "bottom",
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    {
        type: 'category',
        position: "bottom",
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    {
        type: 'category',
        position: "bottom",
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    ],
    yAxis: {
        type: 'value'
    },
    series: [{
        data: [122222222222220, 200, 150, 80, 70, 110, 130],
        type: 'bar'
    }]
};