fix: Use reverted partition_by, _sort

Author: dangotbanned

narwhals/_spark_like/expr.py

@@ -539,7 +539,9 @@ def _clip_both(expr: Column, lower_bound: Column, upper_bound: Column) -> Column
     def first(self) -> Self:
         def fn(inputs: SparkWindowInputs) -> Column:
             return self._F.first(inputs.expr, ignorenulls=False).over(
-                self.partition_by(inputs).orderBy(*self._sort(inputs))
+                self.partition_by(*inputs.partition_by).orderBy(
+                    *self._sort(*inputs.order_by)
+                )
             )
 
         return self._with_window_function(fn)