What type of bug are you reporting? Teambuilder/Validator
What is the bug?
Not sure if this classifies as a bug or more of an exploit but under ordinary circumstances you are unable to nickname a Pokemon as another Pokemon. But by adding invisible characters like the one from this website: https://emptycharacter.com to the name you're able to effectively bypass this.
Are you able to replicate it? If so, how?
https://replay.pokemonshowdown.com/gen9doublesou-2228984444-f62uvl5twog5s9ghd2bz7tyr2opd238pw
https://pokepast.es/d59da164a33f97b1
This is the team I used. You are able to validate this in the builder.
What is the bug?
Not sure if this classifies as a bug or more of an exploit but under ordinary circumstances you are unable to nickname a Pokemon as another Pokemon. But by adding invisible characters like the one from this website: https://emptycharacter.com to the name you're able to effectively bypass this.
Are you able to replicate it? If so, how?
https://replay.pokemonshowdown.com/gen9doublesou-2228984444-f62uvl5twog5s9ghd2bz7tyr2opd238pw
https://pokepast.es/d59da164a33f97b1
This is the team I used. You are able to validate this in the builder.