Mechanics Conversion2 allows the Fairy type to exist in pre-fairy gens

[aqertis]

What type of bug are you reporting? Mechanics

What is the bug?
Conversion 2 allows a mon to gain fairy typing in Gen 3: Replay

Are you able to replicate it? If so, how?
Send in a mon with Conversion 2 and use it against a bug type move until you get the fairy type.