tentative fix for adaptiveavgpool gradient computation (#60630)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/60524
Pull Request resolved: https://github.com/pytorch/pytorch/pull/60630
Reviewed By: jbschlosser
Differential Revision: D29374257
Pulled By: ngimel
fbshipit-source-id: be05f0ceb53e6f0f0a59a83b710dafde469d4e8a