@vocab doesn't expand all unprefixed iris while transacting

[dpetran]

(def conn @(fluree/connect {:method :memory
                              :defaults
                              {:context
                               {:id "@id"
                                :type "@type"
                                :xsd "http://www.w3.org/2001/XMLSchema#"
                                :schema "http://schema.org/"
                                :sh "http://www.w3.org/ns/shacl#"
                                :rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
                                :rdfs "http://www.w3.org/2000/01/rdf-schema#"
                                :wiki "https://www.wikidata.org/wiki/"
                                :skos "http://www.w3.org/2008/05/skos#"
                                :f "https://ns.flur.ee/ledger#"}
                               :did
                               {:id "did:fluree:Tf1sbdG5vZrMvdcfpVN9btp3nkYPKgWNu2H",
                                :public "020154853f38da17df4f1ad6e5cd1c424bf82066708ece89514b975c807aeccc60",
                                :private "ccd238808e29bda00a62cd27c592d1ef16efdf1f473854e6b276409f36435aed"}}}))

(def ledger @(fluree/create conn "dan" {:context {"@vocab" "fluree:dan/"}}))

(def db1 @(fluree/stage ledger {"@id" "heyo"
                                  "x" "foo"
                                  "y" "bar"}))

(def db1* @(fluree/commit! db1))

;; seems to expand heyo to "fluree:dan/heyo" for querying
  @(fluree/query db1* {:context {"@vocab" "fluree:dan/"}
                       :where [['?s "@id" "heyo"]]
                       :select {'?s [:*]}})
  []

  ;; but it didn't expand it while transacting
  @(fluree/query db1* {:where [['?s "@id" "heyo"]]
                       :select {'?s [:*]}})
  [{:id "heyo", "x" "foo", "y" "bar"}]

  ;; here's everything
  @(fluree/query db1* {:where [['?s '?p '?o]]
                       :select ['?s '?p '?o]})
  [["heyo" :id "heyo"]
   ["heyo" "x" "foo"]
   ["heyo" "y" "bar"]
   ["y" :id "y"]
   ["x" :id "x"]
   [:f/Context :id "https://ns.flur.ee/ledger#Context"]
   [:f/Context :rdf/type :rdfs/Class]
   [:f/context :id "https://ns.flur.ee/ledger#context"]
   [:rdfs/Class :id "http://www.w3.org/2000/01/rdf-schema#Class"]
   [:rdf/type :id "http://www.w3.org/1999/02/22-rdf-syntax-ns#type"]
   ["fluree-default-context" :id "fluree-default-context"]
   ["fluree-default-context" :rdf/type :f/Context]
   ["fluree-default-context"
    :f/context
    "{\"schema\":\"http://schema.org/\",\"wiki\":\"https://www.wikidata.org/wiki/\",\"xsd\":\"http://www.w3.org/2001/XMLSchema#\",\"type\":\"@type\",\"rdfs\":\"http://www.w3.org/2000/01/rdf-schema#\",\"@vocab\":\"fluree:dan/\",\"id\":\"@id\",\"f\":\"https://ns.flur.ee/ledger#\",\"sh\":\"http://www.w3.org/ns/shacl#\",\"skos\":\"http://www.w3.org/2008/05/skos#\",\"rdf\":\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"}"]
   [:id :id "@id"]]

I would expect @vocab to expand everything that isn't explicitly defined in the context, per the spec.

Our json-ld library seems to do the right thing, so maybe we're just not expanding before staging?

(json-ld/expand {"@context" {"@vocab" "fluree:dan/"}
                   "@id" "heyo"
                   "x" "foo"
                   "y" "bar"})
  {:idx [], :id "heyo", "fluree:dan/x" {:value "foo", :type nil, :idx ["x"]}, "fluree:dan/y" {:value "bar", :type nil, :idx ["y"]}}