This field was actually required, however, the simple form code doesn't seem to pick this up when rendering.
Additionally, I noticed:
We were defaulting to read, write and follow scopes — all of which are pretty powerful and potentially dangerous to use, so I've changed to just defaulting to read:me (introduced in #29087)
The "Development" item in the navigation wasn't correctly highlighting when creating or editing applications.
This field was actually required, however, the simple form code doesn't seem to pick this up when rendering.
Additionally, I noticed:
read:me
(introduced in #29087)