$ git clone -n https://gitee.com/rabbitali/bash-completion.git /var/lib/mock/dist-an23-build-490211-74493/root/chroot_tmpdir/scmroot/bash-completion
Cloning into '/var/lib/mock/dist-an23-build-490211-74493/root/chroot_tmpdir/scmroot/bash-completion'...
$ git fetch origin b13207b9abb106fecd22eda7b5751cfda9827f8a:KOJI_FETCH_HEAD
From https://gitee.com/rabbitali/bash-completion
 * [new ref]         b13207b9abb106fecd22eda7b5751cfda9827f8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b13207b Update code from upstream