CLONE - Files are not uploaded to a folder resource when the user cancels.

Test Pre-requisites:

• Login as a teacher.

Test Steps:
1. Navigate to the folder resource and click 'Edit'.
2. Click 'Add' and verify that the file picker is launched.
3. Select 'Upload a file' and select a file.
4. Enter a value for Save As.
5. Change the name of the author.
6. Change the licence type.
7. Select Upload this file then verify that the file appears in the File Manager and that the details are correct.
8. Click cancel and verify that the files are not uploaded.