Persistency problem with Pier 1.1.1 on Mac OS X Server

[Andy Kellens]

Hello,

I have a Pier 1.1.1 installation running on our Mac OS X Server.
While the Pier system runs just fine, I noticed that the system  
stopped saving the changes persistently to the image.
After playing around a bit with our installation, I was able to  
reproduce the problem:
	- I start with a clean Pier image (and import content from a previous  
1.1.1 installation using the Importer/Exporter component)
	- I choose PRImagePersistency (duration: 30 minutes; maxImages: 3) as  
the persistency scheme
	- I start changing the wiki
	- The first two saves work perfectly: Pier creates two new images +  
changes files
	- When the third backup should be made, I get an error: pier.image  
not found
	- I also tried to manually save the image, but get a similar error:  
Squeak cannot locate the changes file /...../pier.changes.
	- I checked: both files are where they should be

Kind regards,

Andy