avoid suppressing exception in FitLoop (#9206)

Author: awaelchli

pytorch_lightning/loops/fit_loop.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import logging
-from contextlib import suppress
 from typing import Any, Dict, Optional
 
 from pytorch_lightning.loops import Loop
@@ -181,8 +180,7 @@ def on_advance_start(self) -> None:
             self.trainer.train_dataloader.load_state_dict(self._dataloader_state_dict)
             self._dataloader_state_dict = {}
 
-        # TODO: specify the possible exception
-        with suppress(Exception):
+        if callable(getattr(self.trainer.train_dataloader.sampler, "set_epoch", None)):
             # set seed for distributed sampler (enables shuffling for each epoch)
             self.trainer.train_dataloader.sampler.set_epoch(self.current_epoch)