split keys on first hyphen, not last
split keys on first hyphen, not last

blaze/distributed,amosonn/distributed,dask/distributed,dask/distributed,mrocklin/distributed,amosonn/distributed,dask/distributed,mrocklin/distributed,amosonn/distributed,mrocklin/distributed,dask/distributed,blaze/distributed,broxtronix/distributed,broxtronix/distributed,broxtronix/distributed