The modified form-finding routine generates the PID gen halves in the
reverse order like events. Due to possible collisions with event PIDIVs,
only run it for unown (since that's all it applies to); the analyzing of
PIDIVs to find incorrect usages isn't really feasible (collision) for
this one.
#1103
matches for berry fix zigzagoon
use correct type comparison for checking if national ribbon is to be set
or not; change XDC to CXD for parity with other references
delete incorrect legality message entry (used a few lines up for super
training flags), is unused.
fix for transferred 8<=xor<16 PIDs in which case the encryption constant
is used (as it is the unmodified PID)
