The source project of this merge request has been removed.
confmodule: now can be used from scripts setting -u in the shell.
In 2006, Martin F Krafft fixed a bug in confmodule that today also bugged me.
Therefore: Please consider merging the patch already provided in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=369953 The patch from #369953 is exactly the same change that I would have made.