WIP

Author: dcherian

xarray/core/groupby.py

@@ -530,6 +530,8 @@ def _binary_op(self, other, f, reflexive=False):
         if dim in result.dims:
             # guards against self._group_dim being "stacked"
             result = result.transpose(dim, ...)
+        # for var in set(obj.coords) - set(obj.xindexes):
+        #    result[var] = result[var].broadcast_like(other)
         return result
 
     def _maybe_restore_empty_groups(self, combined):