fix: align channel loss with sequence parallel labels - #9977

fix: align channel loss with sequence parallel labels#9977

taking-lying-flat wants to merge 2 commits into

modelscope:mainmodelscope/ms-swift:mainfrom

taking-lying-flat:fix/issue-9973-channel-loss-sptaking-lying-flat/ms-swift:fix/issue-9973-channel-loss-spCopy head branch name to clipboard