[Bug] 透视表自定义表头配置不规则树结构，不同维度key下value值相同的行，前面行单元格值会被后面行单元格值覆盖

Version

1.19.1-alpha.1

Link to Minimal Reproduction

https://visactor.io/vtable/demo/table-type/pivot-table

Steps to Reproduce

可以把下述配置代码复制到官网示例里（https://visactor.io/vtable/demo/table-type/pivot-table）

let tableInstance;

const option = {
"records": [
{
"METRIC": "BR UV",
"dim_2261f2a9": "否",
"DATE_DIM_0_0": "317",
},
{
"METRIC": "BR UV",
"dim_2261f2a9": "是",
"DATE_DIM_0_0": "44",
},
{
"METRIC": "BR UV",
"dim_186fb4a4": "否",
"DATE_DIM_0_0": "160",
},
{
"METRIC": "BR UV",
"dim_186fb4a4": "是",
"DATE_DIM_0_0": "288",
}
],
"rows": [
{
"dimensionKey": "dim_2261f2a9",
"title": "维度",
"width": "auto",
},
{
"dimensionKey": "dim_186fb4a4",
"title": "维度",
"width": "auto",
}
],
"rowTree": [
{
"dimensionKey": "dim_2261f2a9",
"value": "否"
},
{
"dimensionKey": "dim_2261f2a9",
"value": "是"
},
{
"dimensionKey": "dim_186fb4a4",
"value": "否"
},
{
"dimensionKey": "dim_186fb4a4",
"value": "是"
}
],
"columns": [
{
"dimensionKey": "METRIC",
"title": "指标",
"width": "auto",
}
],
"columnTree": [
{
"dimensionKey": "METRIC",
"originKey": "metric_7179ce0f",
"value": "BR UV",
"children": []
}
],
"dataConfig": {
"sortRules": [],
"aggregationRules": [
{
"indicatorKey": "DATE_DIM_0_0",
"field": "DATE_DIM_0_0",
"aggregationType": "NONE"
}
]
},
"parseCustomTreeToMatchRecords": true,
"indicators": [
{
"indicatorKey": "DATE_DIM_0_0",
"title": "2025-08-12",
"width": "auto",
}
],
}
tableInstance = new VTable.PivotTable(document.getElementById(CONTAINER_ID), option);
window['tableInstance'] = tableInstance;

Current Behavior

透视表，自定义表头，不规则树的情况下，配置应该和官方配置一致，但是不同key，相同value的单元格行，前面的数值被后面覆盖了

Expected Behavior

单元格数值正常显示，不同维度key下，即便value（表头名称）相同，其所属行单元格数值也不应该被覆盖掉

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response