Comment 47 for bug 1421009

Bad news, tried to start Plasma 5 with the patches to be greated by a zillion of crashing processes, here a backtrace of one of them

Thread 1 (Thread 0x7f658362a780 (LWP 10972)):
[KCrash Handler]
#6 0x00007f6583662168 in QDBusConnectionPrivate::shouldWatchService(QString const&) (this=this@entry=0x0, service=...) at qdbusintegrator.cpp:2310
#7 0x00007f6583662ce2 in QDBusConnectionPrivate::watchService(QString const&, QFlags<QDBusServiceWatcher::WatchModeFlag>, QObject*, char const*) (this=0x0, service=..., mode=..., obj=0xb226b8, member=member@entry=0x7f65836ac300 "1_q_serviceOwnerChanged(QString,QString,QString)") at qdbusintegrator.cpp:2315
#8 0x00007f65836a8695 in QDBusServiceWatcher::addWatchedService(QString const&) (service=..., this=<optimized out>) at qdbusservicewatcher.cpp:103
#9 0x00007f65836a8695 in QDBusServiceWatcher::addWatchedService(QString const&) (this=<optimized out>, newService=...) at qdbusservicewatcher.cpp:283
#10 0x00007f653fde3254 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kded_touchpad.so
#11 0x00007f653fdcbd38 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kded_touchpad.so
#12 0x00007f65823bd608 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () at /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#13 0x00007f65832ece7d in () at /usr/lib/x86_64-linux-gnu/libkdeinit5_kded5.so
#14 0x00007f65832ed45f in () at /usr/lib/x86_64-linux-gnu/libkdeinit5_kded5.so
#15 0x00007f65832edc88 in () at /usr/lib/x86_64-linux-gnu/libkdeinit5_kded5.so
#16 0x00007f65832eec53 in () at /usr/lib/x86_64-linux-gnu/libkdeinit5_kded5.so
#17 0x00007f65832ef03a in kdemain () at /usr/lib/x86_64-linux-gnu/libkdeinit5_kded5.so
#18 0x00007f6582f38a40 in __libc_start_main (main=0x400720 <main>, argc=1, argv=0x7fff13734958, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff13734948) at libc-start.c:289
#19 0x000000000040074e in _start ()

Also konsole is now failing to start (this may be a misuse of api on KUniqueApplication) but still not good to regress like that