The update call on the user call races if there is more than one
repository creation concurrently, leading to incorrect count of
repos. Split things in two, so that we call the update for last
visibility (which isn't problematic if it races, since it can only
ever be best-effort anyway). This way we can atomically increment
the count of repos.
* Fix documentation on Oauth2.Enable flag
The docs list this as ENABLED, but in the source code it's
ENABLE, meaning following the docs leads to confusion.
* Update sample config for oauth2.ENABLE