fix: respect ENABLE_NEW_STRUCTURE_DISCUSSIONS flag in course import

[asadali145]

Description

This PR fixes an issue with the course import.

When a course is imported and ENABLE_NEW_STRUCTURE_DISCUSSIONS is disabled, it still sets DiscussionsConfiguration.provider_type = openedx

Supporting information

https://github.com/mitodl/hq/issues/3076

Testing instructions

• Checkout master branch
• Disable ENABLE_NEW_STRUCTURE_DISCUSSIONS at /admin/waffle/flag/
• Create a new course in studio.
• Verify that the provider_type is set to legacy at /admin/discussions/discussionsconfiguration/
• Add a new unit to the course content and verify that the discussions xBlock is available.
• Now, import a compressed file in this new course at <studio_url>/import/<course_key>
• Verify that the provider_type is changed to openedx at /admin/discussions/discussionsconfiguration/ and it did not respect ENABLE_NEW_STRUCTURE_DISCUSSIONS.
• Discussion xBlock is also hidden while creating a unit.
• Now, checkout this branch and verify that the course import respected ENABLE_NEW_STRUCTURE_DISCUSSIONS and discussions xBlock is available before and after course import.

[openedx-webhooks]

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[arslanashraf7]

👍

[pdpinch]

👍

Just one silly question to answer, and then I'm willing to merge this.

[openedx-webhooks]

@asadali145 🎉 Your pull request was merged! Please take a moment to answer a two question survey so we can improve your experience in the future.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.