### Please describe the problem.

I have two repositories in my local network which are locally paired and synced using git-annex assistant (setup using webapp, both in direct mode). The one (master) has all files and is in mode "full backup". The second one (slave) is in "manual" mode and should therefore only contain the file content it already has. But it also should not loose any content it has until I explicitely drop it but this is exactly what happens! Files are getting dropped (I think it happens during git-annex startup of the slave repository, but I am not sure).

### What steps will reproduce the problem?

1. Setup two repositories using git-annex webapp in local network
2. Set one to "full backup" mode, the second to "manual" mode
3. Add files to the master repository
4. Pair both repositories over webapp
5. Call git-annex get folderA on slave system to transfer some file contents to it.

=> After some time the file contents from folderA seem to disappear on slave system.

### What version of git-annex are you using? On what operating system?

* Master (full backup) repository is running on Ubuntu Server 12.04 and git-annex 5.20140117.1 from PPA. Git version 1.7.9.5
* Slave (manual) repository is running on Gentoo Linux with 5.20140116, created from own ebuild. Git version 1.8.4.5

### Please provide any additional information below.

[[!format sh """
[2014-01-29 09:14:15 CET] main: starting assistant version 5.20140116
[2014-01-29 09:19:33 CET] TransferScanner: Syncing with Eifel.fritz.box__mnt_raid_Media 
Already up-to-date.

(scanning...) [2014-01-29 09:19:34 CET] Watcher: Performing startup scan
Already up-to-date.
Already up-to-date.
[2014-01-29 09:35:31 CET] Committer: Committing changes to git
[2014-01-29 09:35:31 CET] Pusher: Syncing with Eifel.fritz.box__mnt_raid_Media 
[2014-01-29 09:40:37 CET] Committer: Committing changes to git
[2014-01-29 09:44:15 CET] Committer: Committing changes to git
Von ssh://git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media
   390c764..7775ce1  annex/direct/master -> Eifel.fritz.box__mnt_raid_Media/annex/direct/master
   eca59d1..59db343  git-annex  -> Eifel.fritz.box__mnt_raid_Media/git-annex
 + a1f3176...7775ce1 synced/master -> Eifel.fritz.box__mnt_raid_Media/synced/master  (Aktualisierung erzwungen)
Already up-to-date.
error: Ref refs/heads/synced/master is at a1f3176ff3821cdd9aa74bfa310dfdccb8452247 but expected 7775ce196da4561367ee231ce116fe5849827c51
remote: error: failed to lock refs/heads/synced/master        
To ssh://fabian@git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media/
   98219eb..3d2b713  git-annex -> synced/git-annex
 ! [remote rejected] annex/direct/master -> synced/master (failed to lock)
error: Fehler beim Versenden einiger Referenzen nach 'ssh://fabian@git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media/'
Von ssh://git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media
   7775ce1..a1f3176  annex/direct/master -> Eifel.fritz.box__mnt_raid_Media/annex/direct/master
   59db343..6e39b5b  git-annex  -> Eifel.fritz.box__mnt_raid_Media/git-annex
   7775ce1..a1f3176  synced/master -> Eifel.fritz.box__mnt_raid_Media/synced/master
Already up-to-date.
[2014-01-29 09:51:41 CET] Committer: Committing changes to git
error: Ref refs/heads/synced/git-annex is at 3d2b7131d39c78fc56f67e29617e72b177807449 but expected 98219eb545d5dc51da9984ede4b4c5c41ec188d0
remote: error: failed to lock refs/heads/synced/git-annex        
To ssh://fabian@git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media/
 ! [remote rejected] git-annex -> synced/git-annex (failed to lock)
error: Fehler beim Versenden einiger Referenzen nach 'ssh://fabian@git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media/'
To ssh://fabian@git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media/
   3d2b713..5bd0d7e  git-annex -> synced/git-annex
[2014-01-29 09:51:51 CET] Pusher: Syncing with Eifel.fritz.box__mnt_raid_Media 
Everything up-to-date
Everything up-to-date
[2014-01-29 09:53:01 CET] Committer: Committing changes to git
[2014-01-29 09:53:01 CET] Pusher: Syncing with Eifel.fritz.box__mnt_raid_Media 
Everything up-to-date


(Recording state in git...)
(Recording state in git...)
(Recording state in git...)
(Recording state in git...)
(merging synced/git-annex into git-annex...)
(Recording state in git...)
(merging synced/git-annex into git-annex...)
(Recording state in git...)


(Recording state in git...)
(Recording state in git...)
(started...) [2014-01-29 09:53:48 CET] Committer: Committing changes to git
[2014-01-29 09:53:48 CET] Pusher: Syncing with Eifel.fritz.box__mnt_raid_Media 
Everything up-to-date
[2014-01-29 10:19:33 CET] NetWatcherFallback: Syncing with Eifel.fritz.box__mnt_raid_Media 
Von ssh://git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media
   6e39b5b..5bd0d7e  git-annex  -> Eifel.fritz.box__mnt_raid_Media/git-annex
Everything up-to-date
[2014-01-29 10:39:49 CET] Committer: Committing changes to git
[2014-01-29 10:39:49 CET] Pusher: Syncing with Eifel.fritz.box__mnt_raid_Media 
[2014-01-29 10:39:50 CET] Committer: Committing changes to git
[2014-01-29 10:39:51 CET] Committer: Committing changes to git
[2014-01-29 10:39:53 CET] Committer: Committing changes to git
[2014-01-29 10:39:54 CET] Committer: Committing changes to git
[2014-01-29 10:39:55 CET] Committer: Committing changes to git
[2014-01-29 10:39:56 CET] Committer: Committing changes to git
[2014-01-29 10:39:57 CET] Committer: Committing changes to git
[2014-01-29 10:39:59 CET] Committer: Committing changes to git
[2014-01-29 10:40:00 CET] Committer: Committing changes to git
[2014-01-29 10:40:01 CET] Committer: Committing changes to git
[2014-01-29 10:40:02 CET] Committer: Committing changes to git
[2014-01-29 10:40:03 CET] Committer: Committing changes to git
[2014-01-29 10:40:05 CET] Committer: Committing changes to git
[2014-01-29 10:40:07 CET] Committer: Adding AlbumArtSmall.jpg Folder.jpg

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add Audio/Musik/2raumwohnung/2002 - In Wirklich/AlbumArtSmall.jpg ok
add Audio/Musik/2raumwohnung/2002 - In Wirklich/Folder.jpg [2014-01-29 10:40:07 CET] Committer: Committing changes to git
[2014-01-29 10:40:08 CET] Committer: Committing changes to git
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[2014-01-29 10:40:16 CET] Committer: Committing changes to git
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[2014-01-29 10:40:47 CET] Committer: Committing changes to git
[2014-01-29 10:40:48 CET] Committer: Committing changes to git
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[2014-01-29 10:40:55 CET] Committer: Committing changes to git
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[2014-01-29 10:40:59 CET] Committer: Committing changes to git
[2014-01-29 10:41:00 CET] Committer: Committing changes to git
[2014-01-29 10:41:02 CET] Committer: Committing changes to git
[2014-01-29 10:41:03 CET] Committer: Committing changes to git
[2014-01-29 10:41:04 CET] Committer: Committing changes to git
[2014-01-29 10:41:05 CET] Committer: Committing changes to git
[2014-01-29 10:41:06 CET] Committer: Committing changes to git
[2014-01-29 10:41:07 CET] Committer: Committing changes to git
[2014-01-29 10:41:09 CET] Committer: Committing changes to git
[2014-01-29 10:41:10 CET] Committer: Committing changes to git
[2014-01-29 10:41:11 CET] Committer: Committing changes to git
[2014-01-29 10:41:12 CET] Committer: Committing changes to git
[2014-01-29 10:41:23 CET] Committer: Committing changes to git
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[2014-01-29 10:41:33 CET] Committer: Committing changes to git
[2014-01-29 10:41:34 CET] Committer: Committing changes to git
[2014-01-29 10:41:35 CET] Committer: Committing changes to git
[2014-01-29 10:41:36 CET] Committer: Committing changes to git
[2014-01-29 10:41:38 CET] Committer: Adding AlbumArt_..Small.jpg Folder.jpg
ok
(Recording state in git...)
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add Audio/Musik/Alanis Morissette/1995 - Jagged Little Pill/AlbumArt_{79951A99-BD71-4029-80F6-C3705D930871}_Small.jpg ok
add Audio/Musik/Alanis Morissette/1995 - Jagged Little Pill/Folder.jpg [2014-01-29 10:41:38 CET] Committer: Committing changes to git
[2014-01-29 10:41:39 CET] Committer: Committing changes to git
[2014-01-29 10:41:41 CET] Committer: Committing changes to git
[2014-01-29 10:41:42 CET] Committer: Committing changes to git
[2014-01-29 10:41:44 CET] Committer: Committing changes to git
[2014-01-29 10:41:45 CET] Committer: Committing changes to git
[2014-01-29 10:41:46 CET] Committer: Committing changes to git
[2014-01-29 10:41:47 CET] Committer: Committing changes to git
[2014-01-29 10:41:48 CET] Committer: Committing changes to git
[2014-01-29 10:41:49 CET] Committer: Committing changes to git
[2014-01-29 10:41:51 CET] Committer: Committing changes to git
[2014-01-29 10:41:52 CET] Committer: Committing changes to git
[2014-01-29 10:41:54 CET] Committer: Committing changes to git
[2014-01-29 10:41:55 CET] Committer: Committing changes to git
[2014-01-29 10:41:56 CET] Committer: Committing changes to git
[2014-01-29 10:41:58 CET] Committer: Committing changes to git
[2014-01-29 10:41:59 CET] Committer: Committing changes to git
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[2014-01-29 10:42:07 CET] Committer: Committing changes to git
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[2014-01-29 10:42:10 CET] Committer: Committing changes to git
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[2014-01-29 10:42:19 CET] Committer: Committing changes to git
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[2014-01-29 10:42:25 CET] Committer: Committing changes to git
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[2014-01-29 10:42:27 CET] Committer: Committing changes to git
[2014-01-29 10:42:28 CET] Committer: Committing changes to git
To ssh://fabian@git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media/
   5bd0d7e..1eda3be  git-annex -> synced/git-annex
[2014-01-29 10:43:43 CET] Pusher: Syncing with Eifel.fritz.box__mnt_raid_Media 
To ssh://fabian@git-annex-Eifel.fritz.box-fabian_.2Fmnt.2Fraid.2FMedia/mnt/raid/Media/
   1eda3be..4c70ad2  git-annex -> synced/git-annex
"""]]

> The only way a repository can become "unwanted" is if you
> tell git-annex to start deleting it (or perhaps set its group to unwanted
> manually). This will cause git-annex to try to move all files away from
> that repository. 
> 
> So, AFAICS, this must have been a case of operator error. [[done]]
> --[[Joey]]
