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
464152437,MDExOlB1bGxSZXF1ZXN0Mjk0NDg5OTE4,3079,Fix printing summaries of multiindex coords,2552981,closed,0,,,7,2019-07-04T09:05:23Z,2019-07-11T07:48:56Z,2019-07-10T16:48:01Z,CONTRIBUTOR,,0,pydata/xarray/pulls/3079,"Since merging #2293 summarize_variable displays the first and last few entries,
so we have to pass all along.

MWE:
```python
import xarray as xr
import numpy as np
x = np.arange(0, 90, 0.5)
y = np.arange(0, 90, 0.5)
da = xr.DataArray(np.random.random((len(x), len(y))), [('x', x), ('y', y)])
da.stack(z=('x', 'y'))
```
gives on master:
```
<xarray.DataArray (z: 32400)>
array([0.497724, 0.793955, 0.140193, ..., 0.05734 , 0.884105, 0.479093])
Coordinates:
  * z        (z) MultiIndex
  - x        (z) float64 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ... 0.0 0.0 0.0 0.0 0.0 0.0
  - y        (z) float64 0.0 0.5 1.0 1.5 2.0 2.5 ... 12.5 13.0 13.5 14.0 14.5
```
and on this branch
```
<xarray.DataArray (z: 32400)>
array([0.497724, 0.793955, 0.140193, ..., 0.05734 , 0.884105, 0.479093])
Coordinates:
  * z     (z) MultiIndex
  - x     (z) float64 0.0 0.0 0.0 0.0 0.0 0.0 ... 89.5 89.5 89.5 89.5 89.5 89.5
  - y     (z) float64 0.0 0.5 1.0 1.5 2.0 2.5 ... 87.0 87.5 88.0 88.5 89.0 89.5
```

 - [ ] Closes #xxxx
 - [x] Tests added
 - [ ] Fully documented, including `whats-new.rst` for all changes and `api.rst` for new API
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