pytorch

a04f729b - Fix VaryingShape::merge

Fix VaryingShape::merge Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/24455 Test Plan: Imported from OSS Differential Revision: D16853270 Pulled By: zdevito fbshipit-source-id: 328aab6873fbff64aa9a4c1d5917d302f6b45397