Bug 1082106 - avoid problem where ->bz_add_columns creates a foreign key constraint causing failure in checksetup.pl when it tries to re-add it later. r,a=glob
Revert "Bug 1082106 - avoid problem where ->bz_add_columns creates a foreign key constraint causing failure in checksetup.pl when it tries to re-add it later. r,a=glob"

This reverts commit 3c0c6a5b72e342e79b99fc2f33b4b14dd3a3caec.