$ git clone -n https://gitee.com/src-anolis-sig/java-1.8.0-alibaba-dragonwell.git /var/lib/mock/dist-an8.9-plus-build-402944-71764/root/chroot_tmpdir/scmroot/java-1.8.0-alibaba-dragonwell
Cloning into '/var/lib/mock/dist-an8.9-plus-build-402944-71764/root/chroot_tmpdir/scmroot/java-1.8.0-alibaba-dragonwell'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-sig/java-1.8.0-alibaba-dragonwell
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49c138f update to 8.20.21.422