opdenkamp/xbmc — comment on commit 9981f09462aa52c261b4de520e561bbaec917a20
File:  line 0
By nemphys:

Right after the latest commits:

00:46:14 T:2980047728 DEBUG: PVRChannelGroups - UpdateGroupsEntries - user defined group IRIB with ID '19' does not exist on the client anymore. deleting
00:46:14 T:2980047728 DEBUG: Mysql execute: DELETE FROM map_channelgroups_channels WHERE idGroup = 19
00:46:14 T:2980047728 DEBUG: Mysql execute: DELETE FROM channelgroups WHERE idGroup = 19 AND bIsRadio = 0
00:46:14 T:2980047728 DEBUG: PVRChannelGroups - UpdateGroupsEntries - user defined group All TV channels with ID '2' does not exist on the client anymore. deleting
00:46:14 T:2980047728 ERROR: CPVRChannelGroups - DeleteGroup - cannot delete internal group 'All TV channels'
00:46:14 T:2980047728 DEBUG: PVRChannelGroups - LoadUserDefinedChannelGroups - -1 new user defined TV channel groups fetched from clients

I don't remember this happening in my version (that's why I added the internal group check). I don't know why it happens (since you kept the check).