Currently org.freedesktop.Telepathy.Connection.Interface.Location/location is omitted is there is no location.
http://git.collabora.co.uk/?p=user/cassidy/telepathy-gabble;a=shortlog;h=refs/heads/contact-location-27694 We should fix bug #25775 first as this branch raises this bug in test-location.py.
Fixed in master and 0.8.
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