block dynamic creation of comp wins for root windows and their parents. my confusion is palpable.

src/bin/e_comp.c

@@ -2989,6 +2989,8 @@ _e_comp_show(void *data EINA_UNUSED, int type EINA_UNUSED, void *event)
         E_Manager *man;
         int x, w;
 
+        /* block root window and parents */
+        if (ev->win <= ev->event_win) return ECORE_CALLBACK_RENEW;
         man = e_manager_find_by_root(ev->event_win);
         if (!man) return ECORE_CALLBACK_RENEW;
         cw = _e_comp_win_add(man->comp, ev->win, NULL, 1);