nemomobile/buteo-sync-plugin-caldav — pull request #13 by blammit (2014-05-16 01:30:49+00:00)
Title: [caldav] Sync calendars even if they have not been previously synced for...

... an account

Since an account has multiple calendars, the decision to choose a slow
sync versus a quick sync for a notebook should depend on whether a
notebook already exists for a particular calendar, rather than whether
the account has previously been synced.