System Settings crashes when unchecking "Only Show Current Language"

[Adnan Shameem]

Using Kubuntu 15.10 32bit with no upgrades

$ lsb_release -rd
Description: Ubuntu 15.10
Release: 15.10

$ apt-cache policy systemsettings
systemsettings:
  Installed: 4:5.4.2-0ubuntu1
  Candidate: 4:5.4.2-0ubuntu1
  Version table:
 *** 4:5.4.2-0ubuntu1 0
        500 http://mirror.dhakacom.com/ubuntu-archive/ wily/universe i386 Packages
        100 /var/lib/dpkg/status

I opened System Settings -> Personalization -> Regional Settings -> Input method tab.
When I uncheck "Only Show Current Language", the System Settings crashes!

It should've populated all the keyboard layouts in the "Available Input Method" list.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: systemsettings 4:5.4.2-0ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic i686
ApportVersion: 2.19.1-0ubuntu3
Architecture: i386
CasperVersion: 1.365
CurrentDesktop: KDE
Date: Tue Nov 10 08:56:52 2015
ExecutablePath: /usr/bin/systemsettings5
LiveMediaBuild: Kubuntu 15.10 "Wily Werewolf" - Release i386 (20151021)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=
 SHELL=/bin/bash
SourcePackage: systemsettings
UpgradeStatus: No upgrade log present (probably fresh install)

[Adnan Shameem (needadnan)]

I found a workaround to this crash...
It involves writing the layout name in the search field before unchecking the checkbox.

I knew that I wanted Unijoy layout. So:
1. I opened the Input method settings (System Settings -> Personalization -> Regional Settings -> Input method tab)
2. Before unchecking, I wrote "unijoy" in the search box just below "Available Input Method" (I had to install fcitx-m17n for unijoy layout.)
3. I unchecked the checkbox, and I found the layout I was looking for!