Reimport workflow will cause internal system error

[yifanchen90]

Describe the bug 重新导入工作流的时候无论如何修改参数，点击确定后都会报系统内部错误

To Reproduce Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior 支持工作流的重新导入

Screenshots

Desktop (please complete the following information): 开发机部署的地址 http://10.37.43.61:8888/workspace/wcle9frmi3a6rcsi7j0t0/workflow

Additional context Add any other context about the problem here.