### Please describe the problem.
Trying to rename the "here" repository fails

### What steps will reproduce the problem?
* Start git-annex webapp in the console (for the first time, or remove old annex directory + .config/git-annex)
* In the browser window that opens click "Make repository"
* The "here" repository should show up in the dashboard
* Go to settings and select edit
* Change the repository name (e.g. to here2) and click save changes
* You should be back at the dashboard and the repository name is still "here"


### What version of git-annex are you using? On what operating system?
* git-annex version: 4.20130601
* build flags: Assistant Webapp Pairing Testsuite S3 WebDAV Inotify DBus XMPP DNS
* built using cabal
* on Ubuntu 13.04 32bit

### Please provide any additional information below.

[[!format sh """
# If you can, paste a complete transcript of the problem occurring here.
# If the problem is with the git-annex assistant, paste in .git/annex/daemon.log

[2013-06-12 22:22:57 CEST] main: starting assistant version 4.20130601
(scanning...) [2013-06-12 22:22:57 CEST] Watcher: Performing startup scan
(started...) 

# End of transcript or log.
"""]]

> Made text field for this repository disabled. The current repository has no remote name to edit. [[done]] --[[Joey]]