I just checked, and there is no problem in the images I work with. Try this in the latest Moose 4.8 image:

Gofer new 
smalltalkhubUser: 'girba' project: 'Snapshotcello';
package: 'ConfigurationOfSnapshotcello';
load.
ConfigurationOfSnapshotcello loadStable.
Snapshotcello new 
configurationClass: ConfigurationOfMoose;
        sourceVersion: #development;
repositoryFor: 'ConfigurationOfMooseAlgos' 

==> 'http://www.smalltalkhub.com/mc/Moose/MooseAlgos/main/'

Good news. In a fresh synectique image now I get the same using the stable version of snapshotcello.
I still do not understand what changed with the other try I did. 
What was strange is that my MC was corrupted with nil in cacheRepository and others. 

So I will try now to rebuild synectique tools. I checked all the configurtions and they look simple and ok. 

stef