Password not masked in Database connection when datasource added through YAML file.

[MalavikaN1]

A clear and concise description of what the bug is.

How to reproduce the bug

1. Click on setting
2. Go to Database Connections
3. Click on edit button in Actions for a dataset

Expected results

The password in the SQLAlchemy URI should be masked with XXXX

Actual results

The password is initially displayed, but once you click on the input box change something and click on finish and then reopen it, it becomes masked.

Screenshots

If applicable, add screenshots to help explain your problem.

Environment

(please complete the following information):

• browser type and version: Chrome
• superset version: superset version : latest

Checklist

Make sure to follow these steps before submitting your issue - thank you!

• [x ] I have checked the superset logs for python stacktraces and included it here as text if there are any.
• [x ] I have reproduced the issue with at least the latest released version of superset.
• [ x] I have checked the issue tracker for the same issue and I haven't found one similar.

Additional context

Add any other context about the problem here.

[rusackas]

Hi there, and sorry this has gone quiet for so long. We're no longer supporting Superset 2.x or prior, and it's been a while since this thread saw any activity, so I'm closing this as stale. If it is still an issue in Superset 3.x, we can re-open this, or feel free to open a new issue with updated context.