Canceling an Import Folder in process does not cancel the task

[TheCSpider]

What I was doing:
Started Folder Import of my STL directory structure. Realized doing the whole thing at once was going to be a bit chaotic so I hit the red X to cancel it.

Actual Behavior:
The directory was removed from the Import Folders list; but the import continued to happen. I only seemed able to stop it if I closed the program.

Expected Behavior:
The import should halt and import nothing further if the item is x'd out.

[TheCSpider]

Just saw that this has already been resolved in an unpublished version.