Hi Dominic,
I am the developer for the Shared Folders feature, and I have been under the gun recently with lots of new stuff going on.
I have to report that the bug you have reported has been filed and accepted.
I have not had a chance to reproduce this issue and look into it just yet, but you have my word that I will do as soon as I get a chance.
We take all these issues like this very seriously and I hope that we can get a fix for the next set of releases (major and minor).
If I have any updates or issues, I will report back here.
Thanks so much for the detailed report and the sample application this goes a long way to helping.
Steve