$ git clone -n https://gitee.com/mgb01105731/mosquitto_1.git /var/lib/mock/dist-an23-epao-build-294413-65304/root/chroot_tmpdir/scmroot/mosquitto_1
Cloning into '/var/lib/mock/dist-an23-epao-build-294413-65304/root/chroot_tmpdir/scmroot/mosquitto_1'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/mosquitto_1
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 76de21e init upstream from version 2.0.15