User Manager hangs after selecting a photo

1. Run "System Settings"
2. Choose "Account Settings", then "User Manager"
3. Select my own account.
4. Click the icon to choose a photograph and select "Load from file..."
5. Navigate to a JPEG file and select it. Click "Open". My photograph appears in place of the icon.
6. In User Manager, click "Apply".
7. System Settings hangs.

I reproduced this 5 times in a row.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: systemsettings 4:5.4.2-0ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
Uname: Linux 4.2.0-17-generic x86_64
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Nov 8 20:29:06 2015
InstallationDate: Installed on 2013-08-31 (799 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: systemsettings
UpgradeStatus: Upgraded to wily on 2015-11-08 (0 days ago)