[Akonadi] [Bug 351628] New: Akonadi DAV Resource does not sync all calendars on ownCloud any more

[Matija Šuklje]

https://bugs.kde.org/show_bug.cgi?id=351628

            Bug ID: 351628
           Summary: Akonadi DAV Resource does not sync all calendars on
                    ownCloud any more
           Product: Akonadi
           Version: 1.13.0
          Platform: Mageia RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: NOR
         Component: DAV Resource
          Assignee: kdepim-bugs at kde.org
          Reporter: matija at suklje.name

What happens is that every now and again, one or several of the calendars
(and/or contacts) resources on ownCloud stop syncing with Akonadi. Since the
sync works fine with my Jolla phone, I suspect the issue is on KDE’s side.

How this looks in practice is that suddenly and without warning items from some
calendars are missing in KOrganizer, Zanshin, EventList and even Akonadi
Console.

What I already tried to do, that before worked, but since the latest update
doesn’t:
 • in Akonadi Console: toggle offline; abort activity; restart resource; toggle
online
 • in Akonadi Console: restart Akonadi server
 • in Akonadi Console: clone the WebDAV resource and remove the old one
 • in Akonadi Console: just remove the old one and create a new one manually
 • restarting KDE/X
 • restarting the computer (yes, I’m getting desperate!)
 • created a fresh new user on my laptop with a clean new home and added my
ownCloud as a new CalDAV resource
 • export the iCal file from ownCloud and reimport it to ownCloud, so I have a
duplicate (funnily enough if I open that iCal file in KOrganizer it works)

 …all to no avail. The events don’t show in the Akonadi Console.

The current state that I can see in Akonadi Console ↦ Browser is that:
 • Contacts shows 673 entries (seems correct)
 • “Dogodki” calendar shows 17 entries (seems correct)
 • “Faks” calendar shows no entries and 0 size (**FALSE**)
 • “FSFE” calendar shows 579 entries (seems correct)
 • “Osebno” calendar shows no entries and 0 size (**FALSE!**)
 • Rojstni dan/Birthdays show 14 entries

The only thing that I can think of as special for the two non-syncing calendars
is that I renamed them at some point (Študij ⇒ Faks; Opravki ⇒ Osebno) and in
the backend they are still called the old name. But this was long long before
this bug happened and it works fine with the Jolla Sailfish calendar app.

My setup: Mageia 5 (stable); x86_64
Akonadi 1.13.0-4
KDE: 4.14.5
KOrganizer: 4.14.5-1
ownCloud: 8.0.4

I suspect this could be related to: https://bugs.kde.org/show_bug.cgi?id=328734

Confirmed at Akademy, when dvratil (will add to CC) looked at my laptop and
tried to figure out what’s the cause.

Reproducible: Always

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