'channels' tag now also moved to sequential FT group in pipeline; role-select.js ensures Tray.close() before turn advances so as not to obstruct next gamer selection; RoleSelectSpec.js asserrts this functionality

src/apps/epic/static/apps/epic/role-select.js

@@ -163,6 +163,9 @@ var RoleSelect = (function () {
         var invSlot = document.getElementById("id_inv_role_card");
         if (invSlot) invSlot.innerHTML = "";
 
+        // Close tray so it doesn't obscure the next player's card-stack
+        if (typeof Tray !== "undefined") Tray.close();
+
         var stack = document.querySelector(".card-stack[data-user-slots]");
         if (stack) {
             // Sync starter-roles from server so the fan reflects actual DB state