keep indexes in lat lon selection to dodge pydata#9475

doc/user-guide/hierarchical-data.rst

@@ -788,12 +788,10 @@ We can also still perform all the same operations on the whole tree:
 .. ipython:: python
     :okexcept:
 
-    dt.sel(lat=75, lon=300)
+    dt.sel(lat=[75], lon=[300])
 
     dt.std(dim="time")
 
-(TODO: The first one repeats coordinates in the result due to https://github.com/pydata/xarray/issues/9475)
-
 (TODO: The second one fails due to https://github.com/pydata/xarray/issues/8949)
 
 .. _overriding-inherited-coordinates: