$ git clone -n https://gitee.com/rabbitali/dwarves.git /var/lib/mock/dist-an23-build-490431-74493/root/chroot_tmpdir/scmroot/dwarves
Cloning into '/var/lib/mock/dist-an23-build-490431-74493/root/chroot_tmpdir/scmroot/dwarves'...
$ git fetch origin b13f76b556c8f4a57461baf508bb3c9587ba1510:KOJI_FETCH_HEAD
From https://gitee.com/rabbitali/dwarves
 * [new ref]         b13f76b556c8f4a57461baf508bb3c9587ba1510 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b13f76b Update code from upstream