Fix fecher continue next after StopIterator (#59313)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/59312
cc VitalyFedyunin dzhulgakov
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59313
Reviewed By: jbschlosser
Differential Revision: D28837762
Pulled By: dzhulgakov
fbshipit-source-id: 95cc29359aaba0f24ca169c5495ab5c6c53a0dce
