[ENG-9970] Check for the POPULATE_NOTIFICATION_TYPES switch only during the post-migration process#11515

cslzchen merged 1 commit intoCenterForOpenScience:feature/notifications-refactorCenterForOpenScience/osf.io:feature/notifications-refactorfrom

Ostap-Zherebetskyi:fix/populate_notification_typesOstap-Zherebetskyi/osf.io:fix/populate_notification_typesCopy head branch name to clipboard