Fix stupidest regression ever.
Fix stupidest regression ever.

Bad API == unintuitive use == bugs

TODO: Merge EFSSubmissionAddFile into EFSSubmissionEnd

btrask/stronglink,feld/stronglink,btrask/stronglink,rmoorman/stronglink,iOSCowboy/stronglink,Ryezhang/stronglink,yamingd/stronglink,Lacra17/stronglink,iOSCowboy/stronglink,Ryezhang/stronglink,feld/stronglink,nkatsaros/stronglink,rmoorman/stronglink,yamingd/stronglink,feld/stronglink,shaunstanislaus/stronglink,shaunstanislaus/stronglink,nkatsaros/stronglink,shaunstanislaus/stronglink,guiquanz/stronglink,btrask/stronglink,rmoorman/stronglink,guiquanz/stronglink,Lacra17/stronglink,yamingd/stronglink,btrask/stronglink,Lacra17/stronglink,Ryezhang/stronglink,guiquanz/stronglink,nkatsaros/stronglink,iOSCowboy/stronglink