addEdge操作时source或者target如果是Edge的话，那么toJSON再fromJSON会无法正确渲染

[sjw1228]

问题描述

addEdge操作时source或者target如果是Edge的话，那么toJSON再fromJSON会无法正确渲染，控制台会报错，且addEdge的那条边不显示

重现链接

无

重现步骤

1、使用addEdge方法在Edge和Node之间创建连线
2、使用toJSON方法导出数据
3、使用fromJSON方法导入数据
4、控制台报错，画布无法正确渲染

预期行为

正确渲染

平台

版本1.34.6

屏幕截图或视频（可选）

No response

补充说明（可选）

No response

[x6-bot]

👋 @sjw1228

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[NewByVector]

能否提供可以可以复现的 demo？

[NewByVector]

因为无法复现，这个 issue 先关闭。

[x6-bot]

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