$ git clone -n https://gitee.com/mgb01105731/mcelog.git /var/lib/mock/dist-an23.2-build-422632-72922/root/chroot_tmpdir/scmroot/mcelog
Cloning into '/var/lib/mock/dist-an23.2-build-422632-72922/root/chroot_tmpdir/scmroot/mcelog'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/mcelog
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e041c6 Update to 202 from 194