用nz-input会与表单状态touched等字段冲突，这些字段无效果

[yuelinghunyu]

I'm submitting a...

[ ] Bug report  
[ ] Feature request
[ ] Documentation issue or request
[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Support request => Please do not submit support request here

Current behavior

Expected behavior

Minimal reproduction of the problem with instructions

What is the motivation / use case for changing the behavior?

Environment

Angular version: X.Y.Z

ng-zorro-antd version: X.Y.Z

Browser:
- [ ] Chrome (desktop) version XX
- [ ] Firefox version XX
- [ ] Safari (desktop) version XX
- [ ] IE version XX
 
For Tooling issues:
- Node version: XX  
- Platform:  

Others:

[vthinkxie]

please provide steps to reproduce, thanks

[vthinkxie]

duplicated #117

[lock]

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