Egg display bug still occurs

[jtigues]

• Occurs much less often than before, but rarely folks will still see their second pokemon appear briefly in the tracker, as a result of the game thinking the pokemon in the first slot is an egg.
• Previous fix was to add more validations to catch "invalid" pokemon data and simply not updating the previous correct slot 1 data. We can add more validations to make this check more robust, but I would first like to determine if this "garbage" data is not actually just the real slot one pokemon data encrypted in some different way than expected.