So the other day I was playing minecraft as usual. I just wanted some practice and was in the end killing some dragons and using end crystals to revive them but in one of the fights I went into the end gateway but suddenly out of nowhere the dragon also came in and it went back to the spawn island on its own after it went to the spawn island there were 2 dragons I thought the game summoned one extra dragon because the other dragon was too far from the spawn island.