OfflineContentManager import_content does not create folder #2455

In version 2.4.2, for OfflineContentManager's import_content method, if you specify a folder that does not exist it does not create the folder for you, and the imported content ends up in the user's root folder.

To reproduce the issue, specify a folder name that does not exist in import_content.

The expected behavior is for the folder to be created, if it does not exist, and for the imported content to end up in that new folder.