equality on d/entity ignores db

Question

(def edward 694891374557546)
(def db2 (:db-after (d/with test/datomic-db [[:db/add edward :google/display-name "a"]])))
  (= (d/entity test/datomic-db edward)
     (d/entity db2 edward))
  ; true

This breaks reactive programming semantics where, when db updates, (d/entity db x) updates but the result is = to the prior result and therefore continuous time reactive engines will skip downstream computation, reusing a buffered prior instance of the entity that is inconsistent with the latest db.

also see https://github.com/tonsky/datascript/issues/433