The alter script option gives more information than it should (4330326)

The alter script option gives more information than it should.

Steps to reproduce the problem:

1] Create a model with 2 or 3 tables (model 1)
2] Generate script to create database
3] Create database
4] Add a column to model 1
5] Reverse Engineer  from the database to create a new model
6] Compare two models to create the alter script.  

The only difference that Toad Data Modeler should show  is the addition of the new column but the script has a lot of extra data. It is possible to ignore some of the data  but not all of it.