Allow checkout of non-latest iterations of WTParts & MPMLink objects.
To prevent irreversible mistakes users do with a “delete”, we can block "Delete" with access rules.
But to correct a mistake user needs to be able to checkout of non-latest iterations of WTParts & MPMLink objects.
Just for information
Preference "Allow checkout of non-latest iterations" is only valid for CAD Document.
Preference "Allow revise of non-latest revisions" is valid for all object types.
