My current understanding is that if you modify an out of box script, like a task Business Rule, the next system upgrades that touch those business rules will skip them because it detects user modifications to it.
If you duplicate the script and set the original to not active, that still shows a user being the one that last modified the script so will the upgrade still skip it? Does the upgrade actually check the code of the script to see if it matches the upgrades script? Also, what happens if you accidentally modify an OOB script? Is it ok to revert to a previous version and then the upgrade will still upgrade the script?
