Different datomic schema migrations with conformity

schema.edn

;; version 1 i.e. [[a] [b] [c] [d] [e] [f]]
{:app/schema
  {:txes [[{:db/id #db/id [:db.part/db]
            :db/ident :something/title
            :db/valueType :db.type/string
            :db/cardinality :db.cardinality/one
            :db/index false
            :db.install/_attribute :db.part/db}]]

          [{:db/id #db/id [:db.part/db]
            :db/ident :something/description
            :db/valueType :db.type/string
            :db/cardinality :db.cardinality/one
            :db/index false
            :db.install/_attribute :db.part/db}]}}

;; version 2 i.e. [[a b c d e f]]
{:app/schema
  {:txes [[{:db/id #db/id [:db.part/db]
            :db/ident :something/title
            :db/valueType :db.type/string
            :db/cardinality :db.cardinality/one
            :db/index false
            :db.install/_attribute :db.part/db}]]

           {:db/id #db/id [:db.part/db]
            :db/ident :something/description
            :db/valueType :db.type/string
            :db/cardinality :db.cardinality/one
            :db/index false
            :db.install/_attribute :db.part/db}]]}}

;; version 3 i.e. [[a b] [c d] [e f]]
{:app/schema
  {:txes [[{:db/id #db/id [:db.part/db]
            :db/ident :something/title
            :db/valueType :db.type/string
            :db/cardinality :db.cardinality/one
            :db/index false
            :db.install/_attribute :db.part/db}]]

           {:db/id #db/id [:db.part/db]
            :db/ident :something/description
            :db/valueType :db.type/string
            :db/cardinality :db.cardinality/one
            :db/index false
            :db.install/_attribute :db.part/db}]

          [{:db/id #db/id [:db.part/db]
            :db/ident :another/name
            :db/valueType :db.type/string
            :db/cardinality :db.cardinality/one
            :db/index false
            :db.install/_attribute :db.part/db}]]

           {:db/id #db/id [:db.part/db]
            :db/ident :another/amount
            :db/valueType :db.type/string
            :db/cardinality :db.cardinality/one
            :db/index false
            :db.install/_attribute :db.part/db}]]}}