[11.x] Fix HasManyThrough::one()

[staudenmeir]

HasManyThrough::one() doesn't actually work because it duplicates the JOIN clause and breaks the query:

select "articles".*, "users"."team_id" as "laravel_through_key" from "articles" inner join "users" on "users"."id" = "articles"."user_id" inner join "users" on "users"."id" = "articles"."user_id" where "users"."team_id" = 1 order by "created_at" desc limit 1

We need to remove it before HasOneThrough adds it again.