[Bug] ListTable deleteRecords删除树型根级记录报TypeError: Cannot read properties of undefined (reading 'filteredChildren')

### Version

1.18.4

### Link to Minimal Reproduction

https://codesandbox.io/p/sandbox/viscator-vtable-vue-demo-compilation-forked-2qnfpc

### Steps to Reproduce

在Listtable-tree内，三秒后修改报错

### Current Behavior

在子级不报错，最上一级报错

### Expected Behavior

原来在1.18.3未发现此错误

### Environment

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- Browser:
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### Any additional comments?

_No response_