[BUG] Create transform jobs doesn't reset the drop down list for source/target indices

[BionIT]

What is the bug?
Create transform jobs doesn't reset the drop down list for source/target indices

How can one reproduce the bug?
Steps to reproduce the behavior:

1. Go to future playground

2. Click on 'Transform jobs', then create transform job

3. on the first create page, select data source called aos211

4. Check the drop down for source and target indices
   

5. select data source called aos29

6. Check the drop down for source and target indices which is same as aos211
   

7. See error when click on next
   

What is the expected behavior?
The dropdown for the target/source indices should be populated by the selected data source on the first page, and when data source is changed, it should re-populate

What is your host/environment?

• OS: [e.g. iOS]
• Version [e.g. 22]
• Plugins

Do you have any screenshots?
If applicable, add screenshots to help explain your problem.

Do you have any additional context?
Add any other context about the problem.

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