Fix single-element tuple all-reduce
Fix single-element tuple all-reduce

PiperOrigin-RevId: 282603101
Change-Id: I2801bb87076f1484846c33d4f35566d32f78272c

tensorflow/tensorflow,xzturn/tensorflow,gunan/tensorflow,annarev/tensorflow,petewarden/tensorflow,sarvex/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow,davidzchen/tensorflow,frreiss/tensorflow-fred,gunan/tensorflow,petewarden/tensorflow,freedomtan/tensorflow,aldian/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_saved_model,paolodedios/tensorflow,annarev/tensorflow,Intel-tensorflow/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,aam-at/tensorflow,gunan/tensorflow,paolodedios/tensorflow,davidzchen/tensorflow,xzturn/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,yongtang/tensorflow,arborh/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,gunan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_tf_optimizer,jhseu/tensorflow,gunan/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,Intel-tensorflow/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,arborh/tensorflow,paolodedios/tensorflow,renyi533/tensorflow,karllessard/tensorflow,renyi533/tensorflow,gautam1858/tensorflow,davidzchen/tensorflow,gunan/tensorflow,aam-at/tensorflow,aldian/tensorflow,yongtang/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,petewarden/tensorflow,karllessard/tensorflow,paolodedios/tensorflow,frreiss/tensorflow-fred,adit-chandra/tensorflow,yongtang/tensorflow,frreiss/tensorflow-fred,aam-at/tensorflow,tensorflow/tensorflow,adit-chandra/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,freedomtan/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,jhseu/tensorflow,yongtang/tensorflow,gunan/tensorflow,davidzchen/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,arborh/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow,karllessard/tensorflow,Intel-Corporation/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,adit-chandra/tensorflow,frreiss/tensorflow-fred,aldian/tensorflow,davidzchen/tensorflow,annarev/tensorflow,freedomtan/tensorflow,Intel-tensorflow/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,renyi533/tensorflow,gunan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,cxxgtxy/tensorflow,paolodedios/tensorflow,gautam1858/tensorflow,aam-at/tensorflow,karllessard/tensorflow,aldian/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gunan/tensorflow,renyi533/tensorflow,karllessard/tensorflow,aldian/tensorflow,aldian/tensorflow,aam-at/tensorflow,Intel-Corporation/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,xzturn/tensorflow,adit-chandra/tensorflow,renyi533/tensorflow,gunan/tensorflow,arborh/tensorflow,Intel-tensorflow/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gunan/tensorflow,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,petewarden/tensorflow,annarev/tensorflow,freedomtan/tensorflow,annarev/tensorflow,adit-chandra/tensorflow,aam-at/tensorflow,adit-chandra/tensorflow,arborh/tensorflow,xzturn/tensorflow,jhseu/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,karllessard/tensorflow,frreiss/tensorflow-fred,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,jhseu/tensorflow,petewarden/tensorflow,aam-at/tensorflow,Intel-Corporation/tensorflow,davidzchen/tensorflow,frreiss/tensorflow-fred,karllessard/tensorflow,sarvex/tensorflow,xzturn/tensorflow,xzturn/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,petewarden/tensorflow,annarev/tensorflow,yongtang/tensorflow,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,arborh/tensorflow,jhseu/tensorflow,frreiss/tensorflow-fred,Intel-tensorflow/tensorflow,jhseu/tensorflow,xzturn/tensorflow,renyi533/tensorflow,gautam1858/tensorflow,aam-at/tensorflow,yongtang/tensorflow,annarev/tensorflow,tensorflow/tensorflow,cxxgtxy/tensorflow,arborh/tensorflow,Intel-tensorflow/tensorflow,jhseu/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,renyi533/tensorflow,davidzchen/tensorflow,xzturn/tensorflow,annarev/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow,xzturn/tensorflow,adit-chandra/tensorflow,frreiss/tensorflow-fred,cxxgtxy/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow,annarev/tensorflow,petewarden/tensorflow,adit-chandra/tensorflow,paolodedios/tensorflow,jhseu/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,sarvex/tensorflow,arborh/tensorflow,davidzchen/tensorflow,arborh/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,yongtang/tensorflow,cxxgtxy/tensorflow,arborh/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,sarvex/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,cxxgtxy/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_saved_model,xzturn/tensorflow,renyi533/tensorflow,sarvex/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_saved_model,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,annarev/tensorflow,Intel-tensorflow/tensorflow,xzturn/tensorflow,aldian/tensorflow,yongtang/tensorflow,yongtang/tensorflow,Intel-Corporation/tensorflow,gunan/tensorflow,annarev/tensorflow,jhseu/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aldian/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,sarvex/tensorflow,Intel-Corporation/tensorflow,freedomtan/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,xzturn/tensorflow,tensorflow/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,gautam1858/tensorflow,frreiss/tensorflow-fred,arborh/tensorflow,yongtang/tensorflow,jhseu/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,freedomtan/tensorflow