$ git clone -n https://gitee.com/happy_orange/luajit.git /var/lib/mock/dist-an23-build-340463-69834/root/chroot_tmpdir/scmroot/luajit
Cloning into '/var/lib/mock/dist-an23-build-340463-69834/root/chroot_tmpdir/scmroot/luajit'...
$ git fetch origin 4633675569d409581e4a9ab83f4a54550c9f2bc4:KOJI_FETCH_HEAD
From https://gitee.com/happy_orange/luajit
 * [new ref]         4633675569d409581e4a9ab83f4a54550c9f2bc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4633675 update to 2.1.rolling