Updating access restriction settings for a published unit from the course outline does not change the unit to Draft

[mariajgrimaldi]

Actual behavior

When updating access restriction settings for a published unit from course outline, the unit is not changed to Draft state.

Expected behavior

When updating access restriction settings for a unit from course outline, unit should be set to Draft state.

Steps to reproduce

On the Unit Page

1. On the unit page, click manage access for the unit.
2. Select content groups you want restrict access to.
3. Click save, and see that unit now has a Draft state.

Course Outline

1. Go to course outline in the Studio
2. Select an already published unit in Course Outline and click Configure from the three dots menu.
3. Restrict access to specific content groups. Click save.
4. See that unit state wasn't changed to Draft, but stays published.

Initially reported in this thread: #1013