MDL-71915 has landed though some issues were found:

Forum

Navigate to the subscriptions tab in the secondary nav:
2 drop downs are noticed.

Subscribers
a) View subscribers
b) Manage subscribers
Shows the potential subscribers and Existing subscribers tables.
This selection is saved in the session. Whenever the user comes back to the
subscribers tab, the previous option is remembered.
So for me selection is not saved - when I come back to Subscriptions tab I always have 'View subscribers' selected even though I selected 'Manage subsribers' last time

Quiz

The dropdown selection does not get preserved when a validation error happens. To reproduce:

1. As a teacher, go to the Question bank.
2. Select Export
3. Press "Export questions to file" without selecting a File format
4. Validation fails
5. Expected: The dropdown will show "Export" as selected.
6. Actual: The dropdown selects the first item on the list (Questions) instead of the "Export" menu item.