Symptom:
When a permanent conference is ended 100 days or more after it started, or a conference of 100 days or more is created via the API, its duration as it appears on the web interface is an unrealistically long time. The digits from the hours field are appended to the digits in the days field. E.g.
100 days, 1 hour, 3 minutes becomes 1001 days, 1 hour, 3 minutes,
212 days, 13 hours, 9 minutes becomes 21213 days, 13 hours, 9 minutes.

This is just a cosmetic issue, the duration in the configuration file is correct.
	
Conditions:
A conference with a duration of 100 days or more exists.