Worker's compensation is not compensation for not working; it  is compensation for being injured on the job. Therefore, if you were not injured on or at job 2, you would not get worker's compensation for job 2--just like if you couldn't work job 2 because you were hurt while snowboarding, playing softball, hunting, etc., you would not get worker's compensation. You only get worker's compensation if hurt on the job, for that job where you were injured.