sha,message,author_date,committer_date,raw_author,raw_committer,repo,author,committer
cafcaeea897894e3a2f44a38bd33c50a48c86215,"Fix map_blocks HLG layering (#3598)

* Fix map_blocks HLG layering

This fixes an issue with the HighLevelGraph noted in
https://github.com/pydata/xarray/pull/3584, and exposed by a recent
change in Dask to do more HLG fusion.

* update

* black

* update",2019-12-07T04:30:18Z,2019-12-07T04:30:18Z,414a3ca56e5eb92bdfc6b3cac35417bf5ba51f54,0c7e9e762dbfd6554e60c953bf27493047d95109,13221727,1312546,2448579