### Please describe the problem.
When assistant sync with some remote, it will call git that will call ssh without annex-sync

### What steps will reproduce the problem?
I've remote that have:

    [remote "shukrat"]
      [...]
      annex-ignore = true
      annex-ssh-options = -i /home/moi/.ssh/git-annex/some-key

When I run `git annex sync shukrat` in the repository, it will sync it using the key, but when I ask the assistant to sync it, it will use some otherkey and so it will ask for my passphrase.


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

    % git annex version 
    git-annex version: 5.20150916-1
    build flags: Assistant Webapp Webapp-secure Pairing Testsuite S3 WebDAV Inotify DBus DesktopNotify XMPP DNS Feeds Quvi TDFA Database
    key/value backends: SHA256E SHA256 SHA512E SHA512 SHA224E SHA224 SHA384E SHA384 SHA3_256E SHA3_256 SHA3_512E SHA3_512 SHA3_224E SHA3_224 SHA3_384E SHA3_384 SKEIN256E SKEIN256 SKEIN512E SKEIN512 SHA1E SHA1 MD5E MD5    WORM URL
    remote types: git gcrypt S3 bup directory rsync web bittorrent webdav tahoe glacier ddar hook external
    local repository version: 5
    supported repository version: 5
    upgrade supported from repository versions: 0 1 2 4

on debian/sid

### Please provide any additional information below.

when the assistant is syncing, I've:

    $ pstree -p | grep ssh-ask
           |-git(27589)---ssh(27590)---ssh-askpass(27617)
    $ ps -f -p 275900
    UID        PID  PPID  C STIME TTY          TIME CMD
    moi      27590 27589  0 14:10 ?        00:00:00 ssh user-data@shukrat git-receive-pack '/home/user-data/git-repos/Images.git/

log from .git/annex/daemon.log:

    [2015-09-27 14:09:55.844597] main: Syncing with shukrat 
    Pass a valid window to KWallet::Wallet::openWallet().
    Pass a valid window to KWallet::Wallet::openWallet().
    Everything up-to-date



> [[fixed|done]] --[[Joey]]