fnd_cocnurrent_programs_tl zd_edition_name chagnes after AD & TXK 8

Why is the fnd_ tables have SET1 or SET2 instead of the Edition Name . I am seeing this behavior after I apply the AD & TXK 8 patches.

Before AD & TXK

SQL> select COUNT(*), zd_edition_name FROM apps.fnd_concurrent_programs_tl group by zd_edition_name;

  COUNT(*) ZD_EDITION_NAME

---------- ------------------------------

     75672 V_20161207_1354

AFTER AD & TXK 8

SQL> /

  COUNT(*) ZD_EDITION_NAME

---------- ------------------------------

     75756 SET1

Thanks,

Karthick m