prevent from overriding batch_sampler when both precompute and batch_sampler is set

Author: jobs-git

pytorch_forecasting/data/timeseries/_timeseries.py

@@ -2691,7 +2691,7 @@ def to_dataloader(
         if self.precompute:
             kwargs["collate_fn"] = self.__fast_collate_fn__()
             self.__precompute__(kwargs)
-        if kwargs["batch_sampler"] is not None:
+        elif kwargs["batch_sampler"] is not None:
             sampler = kwargs["batch_sampler"]
             if isinstance(sampler, str):
                 if sampler == "synchronized":