Cancelling Import will remove any partially imported data or list items

[CharlesBowman]

As a user, I would like any partially imported data or list items to be removed when I cancel an import.

Currently, when an import is cancelled mid-way through, any partially imported data or list items will remain after the import is complete. However, the history will show that the import was cancelled. 

This will help avoid confusion and prevent unnecessarily adding data / list items. 

[EdytaFox]

Additionally if you cancel the import when it's done up to 91%, the data is in fact partially imported, but if you cancel it when the process is done by 95%, whole set of data is imported successfully into the model (though in both cases you receive a message that import FAILED).

While doing some changes in this topic, it would be good to consider both scenarios to deal with.