Fix crash when batch downloading images only (fix #850, fix #832)
Fix crash when batch downloading images only (fix #850, fix #832)

Bionus/imgbrd-grabber,Bionus/imgbrd-grabber,Bionus/imgbrd-grabber,Bionus/imgbrd-grabber,Bionus/imgbrd-grabber,Bionus/imgbrd-grabber