[Bug] label not updated after updateSpecSync

[xiaoluoHe]

Version

1.12.6

Link to Minimal Reproduction

none

Steps to Reproduce

const spec = {
  type: 'area',
  data: {
    values: [
      {
        time: '2:00',
        value: 8
      },
      {
        time: '4:00',
        value: 9
      },
      {
        time: '6:00',
        value: 11
      },
      {
        time: '8:00',
        value: 14
      },
      {
        time: '10:00',
        value: 16
      },
      {
        time: '12:00',
        value: 17
      },
      {
        time: '14:00',
        value: 17
      },
      {
        time: '16:00',
        value: 16
      },
      {
        time: '18:00',
        value: 15
      }
    ]
  },
  xField: 'time',
  yField: 'value',
  label:{
    visible:false
  }
};
const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderSync();

spec.label.visible = true;
vchart.updateSpec(spec)

// Just for the convenience of console debugging, DO NOT COPY!
window['vchart'] = vchart;

Current Behavior

label not shown after updateSpec

Expected Behavior

show label after updateSpec

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response