$ git clone -n https://gitee.com/winterddd/ras-tools.git /var/lib/mock/dist-an8.6-build-183836-60012/root/chroot_tmpdir/scmroot/ras-tools
Cloning into '/var/lib/mock/dist-an8.6-build-183836-60012/root/chroot_tmpdir/scmroot/ras-tools'...
$ git fetch origin 536b5a9faebec8f5c76bc1b42c382105c9ff3700:KOJI_FETCH_HEAD
From https://gitee.com/winterddd/ras-tools
 * [new ref]         536b5a9faebec8f5c76bc1b42c382105c9ff3700 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 536b5a9 add ras-tools src and rpmspec