Does anyone know what this means? Specifically the part I've highlighted in purple regarding being treated separately for deviation bank credit:

CBA 8.C.2.d.All deadhead travel shall be classified into two categories, Front/Back-End, and Mid-Trip. For the purpose of deviation bank credit, each category shall be treated separately. However, if a deadhead trip is changed or canceled by the Company, the associated deadhead bank monies remain intact. Within each category, a pilot’s bank credit shall be determined as set forth in Section 8.C.2.a. (above).