$ git clone -n https://gitee.com/src-opencloudos-rpms/popt.git /var/lib/mock/dist-oc9-la64-build-133909-78838/root/chroot_tmpdir/scmroot/popt
Cloning into '/var/lib/mock/dist-oc9-la64-build-133909-78838/root/chroot_tmpdir/scmroot/popt'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/popt
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfb17c9 import popt-1.19-4.tl4