zeitgeist DEBUG log messages appearing in zeitgeist log - should be disabled

While trying to identify rogue processes that periodically write log data unnecessarily I identified that zeitgeist is appending DEBUG messages to the /home/$user/.cache/zzeitgeist/daemon.log (see attached log).

Logging messages to a debug log is useful, however on production release code I don't expect to see DEBUG messages being written to log files:

1. If they are for debugging only then they should be inhibited in production quality code.
2. Unnecessary debug messages to logs cause additional unwanted writes to the disk - when on battery power this can cause laptops to spin drives up and waste power.

Since we are trying to reduce the power consumption I am requesting that debug messages are not written to this log unless debug is explicitly turned on.

How to reproduce:

On an installed system observe the daemon.log get DEBUG messages appended to it over time. Occurs on idle and non-idle systems.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: zeitgeist 0.8.2-1
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Mon Dec 19 17:46:42 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
SourcePackage: zeitgeist
UpgradeStatus: No upgrade log present (probably fresh install)