$ git clone -n https://gitee.com/wency_cn/at_1772086904.git /var/lib/mock/dist-an23-build-515250-75118/root/chroot_tmpdir/scmroot/at_1772086904
Cloning into '/var/lib/mock/dist-an23-build-515250-75118/root/chroot_tmpdir/scmroot/at_1772086904'...
$ git fetch origin a4a57b737d0c5a15bccdb842912640d045cc8181:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/at_1772086904
 * [new ref]         a4a57b737d0c5a15bccdb842912640d045cc8181 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4a57b7 Update code from upstream