Fixed the issue of incorrectly retrieving the root node of the backwa…#1167
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zhengchenyu wants to merge 1 commit intopytorch:mainfrom
Open
Fixed the issue of incorrectly retrieving the root node of the backwa…#1167zhengchenyu wants to merge 1 commit intopytorch:mainfrom
zhengchenyu wants to merge 1 commit intopytorch:mainfrom
