Page crashing if users returns back to ID editor from Rapid editor

[manjitapandey]

Describe the bug
when user goes to id editor and change the editor to Rapid, the processing time is slightly longer than expected. However, when the user tries to go back to ID editor, the page crashes.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'tasks page and select any task.
2. Click on 'map selected task'. Make sure you are mapping through ID editor but the project should also have option to map through Rapid.
3. Switch to Rapid editor through reload editor to get to Rapid page.
4. Again switch to ID editor.
5. See error

Expected behavior
Reloading the iD Editor should occur smoothly without causing any page crashes.

Screenshots
https://vimeo.com/1011989076/e197e9bee8?ts=0&share=copy