$ git clone -n https://gitee.com/zhuzhustu/rear.git /var/lib/mock/dist-an23-build-522991-76770/root/chroot_tmpdir/scmroot/rear
Cloning into '/var/lib/mock/dist-an23-build-522991-76770/root/chroot_tmpdir/scmroot/rear'...
$ git fetch origin 79600075bc0395558d092dd2fece5b1660100445:KOJI_FETCH_HEAD
From https://gitee.com/zhuzhustu/rear
 * [new ref]         79600075bc0395558d092dd2fece5b1660100445 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7960007 add doc sub package and rename patch