Suppose I want to have following repositories syncronized on my windows pc:

    D:\Annex (NTFS hard drive)
    R:\Annex (FAT32 usb flash drive)

What I'm experiencing is that I simply can't do this. Everything ok if both repositories located on the same drive, for example:

    D:\Annex1
    D:\Annex2

I'm new to git annex, tell me if I'm doing something completely wrong.

### System information:

* windows 8.1
* git 1.9.4.msysgit.0
* git-annex 5.20150327-g22c9bbd (official build)

### Short steps for reproduction:

* init repo A on drive C
* commit some file
* clone repo A to repo B on drive D
* add remote to repo B, pointing to repo A
* add remote to repo A, pointing to repo B
* execute sync on repo B

### Verbose step by step reproduction:

    C:\>mkdir Annex

    C:\>cd Annex

    C:\Annex>git init
    Initialized empty Git repository in C:/Annex/.git/

    C:\Annex>git-annex init c
    init c
      Detected a filesystem without fifo support.

      Disabling ssh connection caching.

      Detected a crippled filesystem.

      Enabling direct mode.
    ok
    (recording state in git...)

    C:\Annex>echo "Hello" > README.txt

    C:\Annex>git-annex add README.txt
    add README.txt ok
    (recording state in git...)

    C:\Annex>git-annex sync
    commit  ok

    C:\>D:

    D:\>mkdir Annex

    D:\>cd Annex

    D:\Annex>cd ..

    D:\>git clone C:\Annex
    Cloning into 'Annex'...
    done.

    D:\>cd Annex

    D:\Annex>git-annex init d
    init d
      Detected a filesystem without fifo support.

      Disabling ssh connection caching.

      Detected a crippled filesystem.
    (merging origin/git-annex into git-annex...)
    (recording state in git...)

      Enabling direct mode.
    ok
    (recording state in git...)

    D:\Annex>git remote add c C:\Annex

    D:\Annex>cd ..

    D:\>C:

    C:\>cd Annex

    C:\Annex>git remote add d D:\Annex

    C:\Annex>cd ..

    C:\>D:

    D:\>cd Annex

    D:\Annex>git-annex sync
    commit  ok

    D:\Annex>git-annex get README.txt
    get README.txt (not available)
      Try making some of these repositories available:
            98a6384c-ede4-4c97-b20d-9e1895e415cd -- c
    failed
    git-annex: get: 1 failed

### Notices

Latest sync command should inject annex-uuid to .config file, but it does not. For some reason repository on other drive is unavailable. If I do all of this on the same drive everything works ok. I've also checked case with one bare repository, result is the same.

### Resulting .config files

#### Repo on drive C

    [core]
        repositoryformatversion = 0
        filemode = false
        bare = true
        logallrefupdates = true
        symlinks = false
        ignorecase = true
        hideDotFiles = dotGitOnly
    [annex]
        uuid = 98a6384c-ede4-4c97-b20d-9e1895e415cd
        sshcaching = false
        crippledfilesystem = true
        version = 5
        direct = true
    [remote "d"]
        url = D:\\Annex
        fetch = +refs/heads/*:refs/remotes/d/*

#### Repo on drive D

    [core]
        repositoryformatversion = 0
        filemode = false
        bare = true
        logallrefupdates = true
        symlinks = false
        ignorecase = true
        hideDotFiles = dotGitOnly
    [remote "origin"]
        url = C:\\Annex
        fetch = +refs/heads/*:refs/remotes/origin/*
    [branch "annex/direct/master"]
        remote = origin
        merge = refs/heads/annex/direct/master
    [annex]
        uuid = 74b81547-ef4b-4bd6-bc6c-38578029ac96
        sshcaching = false
        crippledfilesystem = true
        version = 5
        direct = true
    [remote "c"]
        url = C:\\Annex
        fetch = +refs/heads/*:refs/remotes/c/*

> [[fixed|done]]; a simple path calculation bug. --[[Joey]]
