Learning Paths | Students Should be Credited for Previously Completed Courses that Appear on Learning Paths

Let's say I have a learning path that consists of Courses A, B, & C. Two months ago, Learner Larry successfully completed Course A, but he was not enrolled in the learning path at that time. He's decided he wants to enroll in the learning path, and doesn't want to retake Course A. The system should determine that he has previously completed this course and credit him accordingly.