zhuangchong opened a new pull request #4767:
URL: https://github.com/apache/incubator-dolphinscheduler/pull/4767
## What is the purpose of the pull request
this pr closes #4674
fix create warning instance and click Submit without validate the required
parameters
## Brief change log
add validate in the submit method
## Verify this pull request
This change added tests and can be verified as follows:
- *Manually verified the change by testing locally.*

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