$ git clone -n https://gitee.com/src-anolis-os/pakchois.git /var/lib/mock/dist-an23-build-530852-80545/root/chroot_tmpdir/scmroot/pakchois
Cloning into '/var/lib/mock/dist-an23-build-530852-80545/root/chroot_tmpdir/scmroot/pakchois'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/pakchois
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2973005 import pakchois-0.4-10.el7.src.rpm