Fix top_k bug
Fix top_k bug

dongjoon-hyun/DIGITS,bygreencn/DIGITS,dongjoon-hyun/DIGITS,bygreencn/DIGITS,ethantang95/DIGITS-GAN,gheinrich/DIGITS-GAN,Lucaszw/DIGITS,jmancewicz/DIGITS,jmancewicz/DIGITS,Deepomatic/DIGITS,ethantang95/DIGITS,Deepomatic/DIGITS,TimZaman/DIGITS,Deepomatic/DIGITS,bygreencn/DIGITS,bygreencn/DIGITS,TimZaman/DIGITS,Deepomatic/DIGITS,brainstorm-ai/DIGITS,TimZaman/DIGITS,brainstorm-ai/DIGITS,gheinrich/DIGITS-GAN,ethantang95/DIGITS,brainstorm-ai/DIGITS,ethantang95/DIGITS-GAN,TimZaman/DIGITS,gheinrich/DIGITS-GAN,ethantang95/DIGITS,Lucaszw/DIGITS,ethantang95/DIGITS-GAN,jmancewicz/DIGITS,ethantang95/DIGITS,Lucaszw/DIGITS,dongjoon-hyun/DIGITS,ethantang95/DIGITS-GAN,dongjoon-hyun/DIGITS,Lucaszw/DIGITS,jmancewicz/DIGITS,gheinrich/DIGITS-GAN,brainstorm-ai/DIGITS