creeper`s with a radius of 2 have an extra amount of particles

if you summon a creeper with a radius of 2 when it explodes the particles will still be the same as with a regular creeper
steps to reproduce:
step 1
spawn creeper with radius of 2*

step 2
ignite said creeper

step 3
observe bug

here is command for summoning creeper:
/summon creeper ~ ~ ~

{ExplosionRadius:2}