QDBusServer fails processing messages

Probably due to the internal refactoring and of QtDBus and its usage of threads, QDBusServer is now attempting to process its incoming messages before giving its subclasses a chance to register the object names on the new connection.

I'm attaching a test case.

In my real code I'm getting a slightly different error though:

task-0: QDEBUG : SsoTestClient::initTestCase() Error reply:  "No such object path '/com/google/code/AccountsSSO/SingleSignOn'" .

(See https://launchpadlibrarian.net/276197217/buildlog_ubuntu-yakkety-amd64.signon_8.58+16.04.20151106-0ubuntu2~~testrebuild1~~testrebuild1~1_BUILDING.txt.gz )