$ git clone -n https://gitee.com/src-anolis-dde/deepin-desktop-base.git /var/lib/mock/dist-an8.9-dde-build-304409-66375/root/chroot_tmpdir/scmroot/deepin-desktop-base
Cloning into '/var/lib/mock/dist-an8.9-dde-build-304409-66375/root/chroot_tmpdir/scmroot/deepin-desktop-base'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-dde/deepin-desktop-base
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d80daff rebuild for qt5-qtbase-5.15.3