Report Sets - Selecting to Add and then Cancelling still creates a report set

["Ravina Dhami" <ravina@dieboldes.com>]

Gems 1.17.22.0

>From the Report set screen if you click on 'Add' but then press the 'Cancel'
icon, it still creates a record.

Steps to reproduce.
-  From Setup/Reporting Sets, click on Add
-  From the Report Set Property screen click on Cancel
-  Result:  Notice that on the Report set listing screen it lists the report
set you cancelled.