issues: 221845134

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
221845134 MDU6SXNzdWUyMjE4NDUxMzQ= 1373 Dataset.combine_first() coordinates attribute 9844249 closed 0     2 2017-04-14T16:46:02Z 2019-04-14T23:22:23Z 2019-04-14T23:22:23Z NONE      

Hi guys!

Thanks for the great job you are doing!

Here is a possible bug in the Dataset.combine_first() method (I'm using xarray 0.9.2 with Python 3.5.2).

The Dataset/DataArray coordinates are correctly treated if specified without commas, e.g. (as seen with ncdump): MyVar:coordinates = "alt lat lon" ;. In this case lon, lat, and alt are recognized as the Dataset's (and its DataArrays') .coords.

However, the Dataset.combine_first()method only treats coordinates correctly if specified with commas, i.e., MyVar:coordinates = "alt, lat, lon". 

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