Hi Dennis.
During this weekend's FOC Marathon, I discovered that when I entered the callsign of an FOC member, and his number appeared in the User field, his number would be carried forward to the next QSO if that QSO was with a station who is not an FOC member. When logging successive FOC members, each number appears correctly. The problem arises when the next QSO is logged, and the FOC field should be blank.
Vy 73
John EI7BA