I've mentioned this bug and suggest applying patch to debootstrap*.udeb when modifying CDs in http://wiki.debian.org/DebianInstaller/Modify/CD#Workaround_bug_in_deboostrap
When this gets fixed, perhaps that wiki page needs a mention of what release the fix will show up in, so the wiki page doesn't get bitrot. Peter -- Peter Valdemar Mørch http://www.morch.com