html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue https://github.com/pydata/xarray/issues/3673#issuecomment-574271673,https://api.github.com/repos/pydata/xarray/issues/3673,574271673,MDEyOklzc3VlQ29tbWVudDU3NDI3MTY3Mw==,8078968,2020-01-14T16:56:34Z,2020-01-14T16:56:34Z,NONE,we recently changed datetimelike arithmetic to send all object-dtype arrays through _addsub_object_array (previously _addsub_offsetlike). Previously I think `idx.__add__(a)` would return NotImplemented. So we probably want to get the NotImplemented behavior back.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,547012915