Queries with joins do not work on collections

[tonsky]

'[:in $ ?now ?after?
  :find ?e
  :where [?e :campaign/id]
  [?e :starts-at ?start]
  [?e :finishes-at ?finish]
  [(?after? ?now ?start)]
  [(?after? ?finish ?now)]]

get you No protocol IIndexAccess.-datoms defined for type cljs.core/PersistentVector