$ git clone -n https://gitee.com/opencloudos-stream/pam_2fa.git /var/lib/mock/dist-oc9-epol-build-76831-52611/root/chroot_tmpdir/scmroot/pam_2fa
Cloning into '/var/lib/mock/dist-oc9-epol-build-76831-52611/root/chroot_tmpdir/scmroot/pam_2fa'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/pam_2fa
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d52d299 package init