Unable to Add another state due to Ajax error

I have applied the MR , it is working fine and now there is no issue in adding new another state. I have attached the screenshot/video for reference.

Step's :
1. Setup Drupal with webform v6.2.0-beta6
2. Enabled webform module.
3. Go to Administration > Structure > Webform > Add webform.
4. Add element
5. Choose any element like Checkbox and Save
6. Edit element and Go to conditions tab and remove the default empty state and again Ccick on sdd another state then showing error in browser console.
7. Apply MR and clear cache, it will working fine

@jrockowitz Thanks! Could you please add credits for me, as I described the issue and provided a solution? Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.