Cal Poly Pomona converting to semester system affect transfers from CC?

Hello, I am currently a freshman, majoring in Mechanical Engineering, in LACC, a semester system, and I plan to transfer to CPP.

I recently found out that CPP is converting to a semester system and changes are being made. This raises the question on the classes that I have/currently taking in CC to fulfill the major preq and some GE.

“Transferring to CPP will be improved for the majority of transfer students. Approximately 90% of transfer students to CPP come from California community colleges, virtually all of which are on semester systems. Currently, transfer of financial aid is complicated for some students if they transfer in the middle of the year because they have used up one-half of their eligibility in one semester at their community college and may be short on funds if they are taking two quarters of work at CPP. The content of courses is difficult to align completely when the terms are of different lengths. A transfer student may have taken a semester class with content that overlaps all of one quarter class and part of another. If they are given credit for the former they may still be required to take all of the later, wasting credits and covering material they have already studied.” - http://www.cpp.edu/~semester/faqs/students.shtml#q4

What I have a question on is the last part: “If they are given credit for the former they may still be required to take all of the later, wasting credits and covering material they have already studied.” What does it mean about the former: “a semester class with content that overlaps all of one quarter class and part of another”? Does this mean that the classes, for transfer from LACC to CPP, that is displayed on the assist.org, will not be applicable or a waste for students transferring when CPP converts to the semester system?

I’m really confused/worried whether I am taking the right classes because I plan to transfer taking SOME, such as the Golden Four, of the CSU GE plan, not completing the plan, and most of the major preq on assist.org to cover the 60 units needed to transfer.

Any help or clarification will greatly help on my future choices for my classes. Thank you.