$ git clone -n https://gitee.com/wenyuzifang/rubygem-asciidoctor.git /var/lib/mock/dist-an23-build-464721-73881/root/chroot_tmpdir/scmroot/rubygem-asciidoctor
Cloning into '/var/lib/mock/dist-an23-build-464721-73881/root/chroot_tmpdir/scmroot/rubygem-asciidoctor'...
$ git fetch origin a30d331725588f06388b9a6fb6618adae9ef42fa:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/rubygem-asciidoctor
 * [new ref]         a30d331725588f06388b9a6fb6618adae9ef42fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a30d331 Update code from upstream