fixed problem where Data.apply was resetting the index
fixed problem where Data.apply was resetting the index

pearsonlab/thunder,kunallillaney/thunder,kcompher/thunder,kunallillaney/thunder,mikarubi/thunder,mikarubi/thunder,zhwa/thunder,oliverhuangchao/thunder,pearsonlab/thunder,zhwa/thunder,thunder-project/thunder,kcompher/thunder,oliverhuangchao/thunder,poolio/thunder,broxtronix/thunder,broxtronix/thunder,jwittenbach/thunder,poolio/thunder,j-friedrich/thunder,j-friedrich/thunder