SQL-Query on every update (even without Changes)

[Skulli]

Take any model with acts_as_taggable_on in it, like a User

> user = User.first
> user.save
> ActsAsTaggableOn::Tagging Load (0.3ms)  SELECT "taggings".* FROM "taggings" WHERE "taggings"."taggable_id" = $1 AND "taggings"."taggable_type" = $2  [["taggable_id", 1], ["taggable_type", "User"]]

Is there a way to prevent this? I checked the gem-code and found 2 after_save-Callbacks, but when i triggered those by hand, the sql-query was different.