excludePattern property problem

[Alandbush]

I hesitate to report this for I am sure I have made a mistake and I can find no posts that would support my findings, but I am at a loss as to how to proceed.

I have minimserver-0.8-update-102 installed on a Synology DS213j.

I have audio files within a folder named 'music'.
The contentDir = /volume1/music

Within 'music' I have multiple folder names that reflect artists, e.g. 'Radiohead', 'Muse' etc.
I also have a folder named 'glidertestfolder', which is used for various tests of Minimserver and/or various control points.

I have attempted to exclude this folder from a Minimserver rescan.
The excludePattern = glidertestfolder

Following a rescan, I examined the minimserver log file and was surprised at the findings.
Initially, all looks good.

10:46:43.385 main: excludePattern 0: adding PatternMatchPrefix(glidertestfolder)


but then the folder is scanned and tag information is extracted from the contained audio files.

10:48:40.697 main: preVisitDirectory dir=/volume1/music/glidertestfolder
10:48:40.697 main: childPreVisit: dir=/volume1/music/glidertestfolder
10:48:40.697 main: parentFolders[486] = 0
10:48:40.697 main: preVisit: dirPath=/volume1/music/glidertestfolder
Scanning directory glidertestfolder
10:48:40.702 main: preVisitDirectory dir=/volume1/music/glidertestfolder/Robbie Williams
10:48:40.703 main: childPreVisit: dir=/volume1/music/glidertestfolder/Robbie Williams
10:48:40.706 main: parentFolders[487] = 486
10:48:40.707 main: preVisit: dirPath=/volume1/music/glidertestfolder/Robbie Williams
Scanning directory Robbie Williams
10:48:40.709 main: preVisitDirectory dir=/volume1/music/glidertestfolder/Robbie Williams/In And Out Of Consciousness - Greatest Hits 1990-2010
10:48:40.710 main: childPreVisit: dir=/volume1/music/glidertestfolder/Robbie Williams/In And Out Of Consciousness - Greatest Hits 1990-2010
10:48:40.711 main: parentFolders[488] = 487
10:48:40.712 main: preVisit: dirPath=/volume1/music/glidertestfolder/Robbie Williams/In And Out Of Consciousness - Greatest Hits 1990-2010
Scanning directory In And Out Of Consciousness - Greatest Hits 1990-2010
10:48:40.714 main: visitFile file=/volume1/music/glidertestfolder/Robbie Williams/In And Out Of Consciousness - Greatest Hits 1990-2010/Thumbs.db
10:48:40.715 main: preVisitDirectory dir=/volume1/music/glidertestfolder/Robbie Williams/In And Out Of Consciousness - Greatest Hits 1990-2010/@eaDir
10:48:40.716 main: visitFile file=/volume1/music/glidertestfolder/Robbie Williams/In And Out Of Consciousness - Greatest Hits 1990-2010/1-01 - Shame.flac

Needless to say, these tracks appear within the folder structure presented to a control point.

Please put me out of my misery and point out the obvious error.

Thanks in anticipation.