entity.schema: Fix parsing of entity key specs with refs in s/and
entity.schema: Fix parsing of entity key specs with refs in s/and

We need this to work in order to declare entity attributes as
indexed. Before this commit, the following broke:

    (s/def :some/attr (s/and (t/entity-ref 'user) :t/indexed))

Now this works.

workfloapp/macros,workfloapp/macros,workfloapp/app-macros