Problem with Projection + Composition in Collection

[Yannick Scherer]

Applying a projection to a seq whose elements are wrapped by one of claro's composition functions does not have the desired result, e.g.:

(claro.engine/run!!
  (claro.projection/apply
    [(claro.data.ops/then
       (reify claro.data/Resolvable
         (resolve! [_ _]
           {:a 1}))
       identity)]
    [{:a claro.projection/leaf}]))

Instead of [{:a 1}], this produces:

java.lang.IllegalArgumentException: projection template is a map but value is not.
template: {:a <leaf>}
value:    :claro.data.tree.utils/this-should-not-happen