Special Cases

The special cases for attribute expansions are as follows:

Prompts are created if they exist in the source model and do not already exist in the destination model. Prompts are replaced if they exist in both the source and destination model. Prompts are unchanged if they exist in the destination model but not in the source model.
The prompt values are created if they exist in the source model and do not already exist in the destination model. The prompt values are replaced if they exist in both the source and destination models. The prompt values are unchanged if they exist in the destination model but not in the source model.