Part Attachments Get Copied to Job

Right after updating from 10.1.600.14 to 10.1.600.19, files attached to parts are getting copied to jobs, but not every part with an attachment, only parts that have files that were attached to parts since updating to 10.1.600.19. This includes unfirm jobs created by MRP.
I do not want any of the attachments to be copied to the job. Is there some new setting that needs to be changed?
Any ideas?