AttributeError: 'InstallBackendAptdaemon' object has no attribute 'UPDATE'

[niknah]

Can't install anything on playdeb.net
They use "apt:xxx?refresh=yes"
This URL works with software-center

Using...
Ubuntu 13.10
apturl 0.5.2ubuntu2

The output, when I run...
apturl "apt:xxx?refresh=yes"

Also, it gets stuck on this error, can't exit with ctrl-c, have to kill it.

---------

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/aptdaemon/client.py", line 1641, in _run_transaction_helper
    defer.return_value(trans)
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 462, in return_value
    raise _DefGen_Return(val)
defer._DefGen_Return: <AptTransaction object at 0x7f5ca0a1ca00 (aptdaemon+client+AptTransaction at 0x2c2b160)>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/AptUrl/gtk/backend/InstallBackendAptdaemon.py", line 35, in update
    yield self._run_in_dialog(trans, self.UPDATE)
AttributeError: 'InstallBackendAptdaemon' object has no attribute 'UPDATE'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/AptUrl/gtk/backend/InstallBackendAptdaemon.py", line 39, in update
    self.action_done(self.UPDATE, True, False, None, None)
AttributeError: 'InstallBackendAptdaemon' object has no attribute 'action_done'

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Christoph Korn (c-korn)]

Is the refresh=yes option no longer supported?

It is done automatically?
How can I be sure that a package from a new repository can be installed without apt-get update?
This is what the refresh option was about.