If I update iBooks in an iTunesU course will the updates be 'pushed' to I copied versions of the course?

Hello everyone,

Here's the scenario:

I created a course.

I added iBooks to its materials section.

I copied this course to several instructors at my university (many different instructors teacher the same course).

Now I need to update several of the iBooks (to correct typos etc.).

If I update the course I created will the updates be 'pushed' to the courses I copied OR will each instructor need to update the materials themselves?

Thanks!

Jesse