ktimetracker displays multiple idle dialogs, one every minute

When the idle time is reached, ktimetracker shows a dialog to ask to rollback or to continue timing, so you can decide when you come back.

As can be seen in the attached screenshot, I'm getting one dialog per minute, which after e.g. one whole night is on the one hand nightmarish to click through and on the other brings the system to its knees, I presume on memory or X resource exhaustion.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ktimetracker 4:4.13.1-0ubuntu0.1
ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jul 3 15:35:24 2014
InstallationDate: Installed on 2014-02-10 (142 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
SourcePackage: kdepim
UpgradeStatus: Upgraded to trusty on 2014-04-24 (70 days ago)