### Please describe the problem.
On startup, the webapp shows the following warning in a box to the upper right of the screen, with an offer to "Restart thread":

    SanityCheckerStartup crashed: /home/anton/Halvhemligt/.git/annex/misctmp/IMG_32978856.JPG: getFileStatus: does not exist (No such file or directory)

Restarting it causes it to crash again immediately. The log shows the same:

    SanityCheckerStartup crashed: /home/anton/Halvhemligt/.git/annex/misctmp/IMG_32978856.JPG: getFileStatus: does not exist (No such file or directory)
    [2014-06-02 23:31:13 CEST] SanityCheckerStartup: warning SanityCheckerStartup crashed: /home/anton/Halvhemligt/.git/annex/misctmp/IMG_32978856.JPG: getFileStatus: does not exist (No such file or directory)

/home/anton/Halvhemligt/.git/annex/misctmp/ contains the following:

    lrwxrwxrwx 2 anton anton 199 15 maj 21.08 IMG_32978856.JPG -> ../.git/annex/objects/z3/K2/SHA256E-s728022--12de1f194042af3f8c4dbee15c317de0511bbb8b9e8a0463fffb07e7bbc58bb5.JPG/SHA256E-s728022--12de1f194042af3f8c4dbee15c317de0511bbb8b9e8a0463fffb07e7bbc58bb5.JPG
    lrwxrwxrwx 2 anton anton 199 15 maj 21.09 IMG_32988856.JPG -> ../.git/annex/objects/vw/30/SHA256E-s688301--8bb6d636163b443705c9a333194116da3937d8272b70613ca6345eaf6bba1255.JPG/SHA256E-s688301--8bb6d636163b443705c9a333194116da3937d8272b70613ca6345eaf6bba1255.JPG
    lrwxrwxrwx 2 anton anton 199 15 maj 21.17 IMG_33198856.JPG -> ../.git/annex/objects/p3/WG/SHA256E-s754900--224e6489370527156293912e11390af517ad4ef9374ee22c8324b5af5fac0dd7.JPG/SHA256E-s754900--224e6489370527156293912e11390af517ad4ef9374ee22c8324b5af5fac0dd7.JPG

The symlinks are all broken. IMG_3297.JPG, IMG_3298.JPG and IMG_3319.JPG exist in the repository, but I do not recognize the appended numbers 8856. git log shows that these three files have not been modified since they were first added.

### What steps will reproduce the problem?
No idea. I believe this repository was created in the webapp but most of the changes to it has been done in the CLI.

### What version of git-annex are you using? On what operating system?
Precompiled 5.20140530 on Arch Linux x86_64 (git-annex-bin package from the AUR), but 5.20140518 had the same problem.

### Please provide any additional information below.
The crash has not caused any real problem for me that I'm aware of. I'm just reporting it because the error message looks a little scary.

> [[dup|done]] --[[Joey]]
