Bug#866807: Same problem

[Côme Chilliet <come@chilliet.eu>]

Same problem here, with an account at jabber.fr, impossible to connect since the update to stretch.
Worked fine before, works fine on other computers.

Attached is a screenshot of the error.
Also if I start kopete in the console I get this output:

QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.                                                                                   
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.                                                                                   
kopete(13034)/kdecore (KLibrary) kde4Factory: The library "/usr/lib/kde4/kopete_history.so" does not offer a qt_plugin_instance function.                                               
kopete(13034)/libkopete Kopete::PluginManager::loadPluginInternal: Unable to find a plugin named ' "" '!                                                                       
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  7                                                                                                                                                             
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  794                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  795                                                                                                                                                           
Unknown signature value:  794       
Unknown signature value:  795
unexpected version response