Using symbols in an =in=> value causes test to incorrectly succeed

[jkrasnay]

(deftest reproducer
    (facts "This correctly fails"
           {:foo [1 2]} =in=> {:foo [1 3]})
    (let [sym :foo]
      (facts "This should fail, but succeeds"
             {sym [1 2]} =in=> {sym [1 3]})))