[Bug] Line 分段有问题

[neuqzxy]

Version

1.12.6

Link to Minimal Reproduction

1.12.6

Steps to Reproduce

const currentYear = '2024';
const spec = {
    "type": "line",
    "data": {
        "values": [
            {
                "Date": "2024",
                "Name": "电力功耗规划",
                "Amount": 23.8
            },
            {
                "Date": "2025",
                "Name": "电力功耗规划",
                "Amount": 23.8
            },
            {
                "Date": "2026",
                "Name": "电力功耗规划",
                "Amount": 23.8
            }
        ]
    },
    "xField": "Date",
    "yField": "Amount",
    "seriesField": "Name",
    "padding": {
        "top": 10,
        "left": 0,
        "right": 0,
        "bottom": 5
    },
    "point": {
        "visible": true,
        "style": {
            "size": 8,
            fill: datum => datum.Date > currentYear ? '#97BCFF' : '#165DFF'
        }
    },
    "line": {
        "style": {
          strokeOpacity: datum => datum.Date > currentYear ? 0.2 : 1
        }
    },
    "label": {
        "visible": true,
        "style": {
            "fontSize": 12,
            fill: datum => datum.Date > 2024 ? '#737A87' : '#0C0D0E'
        }
    },
    "axes": [
        {
            "orient": "left",
            "label": {
                "visible": false
            }
        },
        {
            "orient": "bottom",
            "tick": {
                // "tickCount": 5
            }
        }
    ],
    "legends": {
        "visible": false
    },
    "tooltip": {
        "activeType": "dimension",
        "dimension": {
            "content": {}
        }
    }
}

const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderSync();

setTimeout(() => {
  vchart.updateSpec(spec);
        vchart.renderSync();
}, [2000]);

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

Current Behavior

Expected Behavior

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response