[cherry-pick] Fix tensor copy bug (#43299) #43728
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phlrain
approved these changes
Jun 22, 2022
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PR types
Bug fixes
PR changes
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Describe
修复C++ copy接口在多卡设备拷贝时的bug，即在执行如下代码时：
返回结果y的预期place应为gpu:1，但目前y的place为gpu:0