message: fix exception in preload
diff: @@ -220,13 +220,11 @@ int vm_manager::load_vm_wavm() {
  auto itr = vm_map.find(3);
  if (itr != vm_map.end()) {
  - if (db_api::get().is_account(N(eosio.token))) {
  - auto t = time_counter(N(eosio.token));
  - itr->second->preload(N(eosio.token));
  + for (uint64_t account : {N(eosio.token), N(eosio)}) {
  + if (db_api::get().is_account(account) && db_api::get().get_code(account).size() > 0) {
  + auto t = time_counter(account);
  + itr->second->preload(account);
  }
  - if (db_api::get().is_account(N(eosio))) {
  - auto t = time_counter(N(eosio));
  - itr->second->preload(N(eosio));
  }
  }
  