$ git clone -n https://gitee.com/mgb01105731/mariadb.git /var/lib/mock/dist-an23.3-build-431406-73055/root/chroot_tmpdir/scmroot/mariadb
Cloning into '/var/lib/mock/dist-an23.3-build-431406-73055/root/chroot_tmpdir/scmroot/mariadb'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/mariadb
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf64ccf update to 10.6.21