[fix] series: Prevent crashes when begin episode did not match identified_by type for the series. fix #2362
[fix] series: Prevent crashes when begin episode did not match identified_by type for the series. fix #2362

malkavi/Flexget,ianstalk/Flexget,ianstalk/Flexget,ianstalk/Flexget,Flexget/Flexget,Flexget/Flexget,crawln45/Flexget,Flexget/Flexget,crawln45/Flexget,Flexget/Flexget,crawln45/Flexget,crawln45/Flexget,malkavi/Flexget,malkavi/Flexget,malkavi/Flexget