Pre-set the empty blob into the "existing blobs" map (#1397)
Pre-set the empty blob into the "existing blobs" map (#1397)

* Pre-set the empty blob into the "existing blobs" map

* why oh why did emacs not gofmt this for me
thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please