Unstable - Edit completion modal for an exercise - Cannot save most of the completion types #4648

Observed behavior

When I open the 'Edit completion' modal for an exercise and select any option other than 'M of N' then when I click the Save button the selected option cannot be saved.

Expected behavior

It should be possible to save all of the supported completion types for an exercise.

Steps to reproduce the issue

1. Go to https://unstable.studio.learningequality.org/en/accounts/#/ and sign in
2. Open a channel with all of the supported resources
3. Click the Options button for an Exercise and select the 'Edit completion' modal
4. Attempt to save the exercise as Practice quiz or any of the other available options other than 'M of N'

Additional information

Console logs

no errors observed in the console

Usage Details

• OS: Windows 10, Ubuntu
• Browser: Chrome, Firefox
• URL: https://unstable.studio.learningequality.org/
• Caused by: Bulk Edit Release #4635