User-Agent:       Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML,
like Gecko) Chrome/46.0.2490.71 Safari/537.36
Build Identifier: 

openSUSE leap 42.1 KDE clean install using fcitx 
de-selecting "only show current language" from the input method tab in the
configuration tool immediately crashes the configuration tool with a
segmentation fault.
"configtool
QFont::setPointSize: Point size <= 0 (0), must be greater than 0
QFont::setPointSize: Point size <= 0 (0), must be greater than 0
QFont::setPointSize: Point size <= 0 (0), must be greater than 0
Segmentation fault"

Although using KDE the fcitx-congig-gtk3 was dragged in as a dependency.
Removing this and replacing it with the kde4 config tool makes no difference
and indeed the config window looks exactly the same - so I'm not sure either of
these files is needed any longer.

fcitx version 4.2.9-6.2

Reproducible: Always