ubiquity hangs while jockey-text at 100% CPU

Running
  sudo killall jockey-text
allows the installation to continue to completion. The system is bootable and usable after that.

Looking at the syslog it may be relevant, that this is a German installation.
I see:

Sep 20 23:07:17 ubuntu ubiquity: Bitte 'j' oder 'n' eingeben und Enter drücken
Sep 20 21:07:18 ubiquity: last message repeated 78 times

Maybe someone somewhere is passing a non-localized 'y' for 'yes' and someone else is expecting a localized 'j' (Ja for yes). Attaching syslog and debug log from ubiquity. This should have more info that the previous logs.

    def check_composite(self):
        '''Check for a composite-enabling X.org driver.

        If one is available and not installed, offer to install it and return
        True if installation succeeded. Otherwise return False.
        '''

        h_id = self.backend().check_composite()

        if h_id:
            self.set_handler_enable(h_id, 'enable', True)
            return bool(self.backend().handler_info(h_id)['enabled'])

        self.error_msg(self._('There is no available graphics driver for your system which supports the composite extension, or the current one already supports it.'))
        return False

Looks like this always asks for confirmation regardless?

I've proposed the following patch to jockey to fix the prompting issue:
https://code.launchpad.net/~ev/jockey/855042/+merge/77497

Jockey fix uploaded to unapproved. Thanks Evan!

This bug was fixed in the package jockey - 0.9.4-0ubuntu9

---------------
jockey (0.9.4-0ubuntu9) oneiric; urgency=low

  * Only ask for confirmation in check_composite if --confirm has been set.
    Thanks to Evan Dandrea! Patch cherrypicked from trunk r740.
    (LP: #855042)
 -- Martin Pitt <email address hidden> Thu, 29 Sep 2011 17:22:09 +0200

Marking the ubiquity task as Invalid. This was a bug in jockey.