Yellow version Pikachu editing bug

[Dunsparce]

Apparently editing your starter Pikachu in changes its hold item from Light Ball(which only the starter pikachu can have) to Berry(which all other Pikachu caught in Gen 1 have) when traded to Gen II. Is there any way to make it so editing the starter Pikachu doesn't alter its unique catch rate modifier(and thus its Gen II hold item)?

[Kaphotics]

Thanks, added the exclusion for that case:

https://github.com/kwsch/PKHeX/commit/44c80bd722e3fa6366309422253aa966d5b57723