$ git clone -n https://gitee.com/yueeranna/libnccl.git /var/lib/mock/dist-an23-epao-build-383669-71809/root/chroot_tmpdir/scmroot/libnccl
Cloning into '/var/lib/mock/dist-an23-epao-build-383669-71809/root/chroot_tmpdir/scmroot/libnccl'...
$ git fetch origin 91b886a949b57565d8667fd8ff9bb498260fd7f6:KOJI_FETCH_HEAD
From https://gitee.com/yueeranna/libnccl
 * [new ref]         91b886a949b57565d8667fd8ff9bb498260fd7f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91b886a update to 2.20.5