-* The AgenDAV "user exists" test is wonky, because there's no real
- users in AgenDAV. Right now we check the "username" column in the
- "prefs" table, but all of the shares (and principals?) have URLs
- instead of usernames. We don't parse the URLs, and instead rely
- on doing find/replace of substrings in e.g. AgendavMv.
-
- In particular, this means that AgenDAV pruning does not work! If
- a user with default preferences is deleted, we don't notice.
-