$ git clone -n https://gitee.com/src-anolis-dde/startdde.git /var/lib/mock/dist-an8.9-dde-build-288537-64901/root/chroot_tmpdir/scmroot/startdde
Cloning into '/var/lib/mock/dist-an8.9-dde-build-288537-64901/root/chroot_tmpdir/scmroot/startdde'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-dde/startdde
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7a4e1b Update to Anolis 8.9