UpdateAvailableStatus signal doesn't contain all expected arguments

[Javier Collado]

According to the client DBus documentation here:
https://wiki.ubuntu.com/ImageBasedUpgrades/Client#DBus_API

The UpdateAvailableStatus signal should contain the following 7 parameters:
UpdateAvailableStatus(is_available, downloading, available_version, update_size, last_update_date, descriptions, error_reason)

However, when running tests locally, I get 6 parameters:
2013-09-25 12:58:45,317 INFO: UpdateAvailable status signal received:
args: (dbus.Boolean(True), dbus.Boolean(False), dbus.String('63'), dbus.Int32(32952956), dbus.String('2013-09-23 12:26:07'), dbus.String(''))
kwargs:{}

It looks like the one that is missing is the descriptions array.

[Barry Warsaw (barry)]

This is deliberate until the u/i can handle the data type of the descriptions array. Sorry for the confusion. See the bug dupe for details.