disco_worker: add a missed initialization
disco_worker: add a missed initialization

simudream/disco,mozilla/disco,mozilla/disco,mwilliams3/disco,discoproject/disco,pavlobaron/disco_playground,discoproject/disco,mwilliams3/disco,ktkt2009/disco,scrapinghub/disco,oldmantaiter/disco,oldmantaiter/disco,beni55/disco,pooya/disco,pooya/disco,simudream/disco,seabirdzh/disco,simudream/disco,discoproject/disco,pavlobaron/disco_playground,seabirdzh/disco,pombredanne/disco,beni55/disco,ErikDubbelboer/disco,seabirdzh/disco,ErikDubbelboer/disco,seabirdzh/disco,mwilliams3/disco,ktkt2009/disco,scrapinghub/disco,pombredanne/disco,pavlobaron/disco_playground,discoproject/disco,beni55/disco,simudream/disco,beni55/disco,ktkt2009/disco,ErikDubbelboer/disco,oldmantaiter/disco,oldmantaiter/disco,scrapinghub/disco,seabirdzh/disco,mwilliams3/disco,ErikDubbelboer/disco,scrapinghub/disco,mozilla/disco,mozilla/disco,ktkt2009/disco,pombredanne/disco,pombredanne/disco,pooya/disco,oldmantaiter/disco,ErikDubbelboer/disco,pombredanne/disco,mwilliams3/disco,discoproject/disco,ktkt2009/disco,pooya/disco,simudream/disco,pavlobaron/disco_playground,beni55/disco