$ git clone -n https://gitee.com/wency_cn/cups_1767849293.git /var/lib/mock/dist-an23-build-505398-74854/root/chroot_tmpdir/scmroot/cups_1767849293
Cloning into '/var/lib/mock/dist-an23-build-505398-74854/root/chroot_tmpdir/scmroot/cups_1767849293'...
$ git fetch origin db77d447fcefc00a5372d2b99e28ec29428a8163:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/cups_1767849293
 * [new ref]         db77d447fcefc00a5372d2b99e28ec29428a8163 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db77d44 Update code from upstream