BuiltinActions :: Cancel - Cancel data stored in data source
The action cancels the data stored in the data source, so far. After canceling modified data the original data instance will be re-read.
When calling the action for an unselected or not modified data source, no action takes place.
Notes:
Data in the data source can be reset as long as the instance has not yet been stored to the database or when running in transaction mode. Cancelling an instance will not cancel relationships, which have been established in the same form.
Return value: - internal feature (not documented) ( logical )