Admittedly this is not very useful to end users, but it is useful to any
app developer using akonadi.
Example from zanshin:
Cannot deparent task child from its parent: [LLCONFLICT] Resource
akonadi_icaldir_resource_0 tries to modify item 641403
(82d006fc-af0d-40cb-8bbe-a7ff75556358) (in collection 1003) with
revision 5; the item was modified elsewhere and has revision 6, aborting STORE.