Comment # 16 on bug 954623 from Wolfgang Bauer

Ok, I managed to reproduce the new crash. I'll try to get a backtrace and
report it upstream at KDE.

xembedsniproxy sends a fake mouse click to the application's XEmbed "icon"
window when you click on the SNI icon in the system tray. I suspect that window
doesn't exist any more or is invalid (this might also have been the reason for
the original crash).

I still think fcitx is doing something weird here though. Maybe it deletes the
window immediately after creating it or something like that?
Would maybe also explain why KDE4 e.g. doesn't show that second "icon" at all.