Update xarray/core/dataset.py

Author: hmaarrfk

xarray/core/dataset.py

@@ -3001,7 +3001,7 @@ def isel(
                     if drop and var.ndim == 0 and name in coord_names:
                         coord_names.remove(name)
                         continue
-                    # Update after slicing
+                    # Update our reference to `var_dims` after the call to isel
                     var_dims = var.dims
                 dims.update(zip(var_dims, var.shape))
             variables[name] = var