$ git clone -n https://gitee.com/wency_cn/cups_1767784795.git /var/lib/mock/dist-an23-build-504869-74854/root/chroot_tmpdir/scmroot/cups_1767784795
Cloning into '/var/lib/mock/dist-an23-build-504869-74854/root/chroot_tmpdir/scmroot/cups_1767784795'...
$ git fetch origin 5d352be21014471e9c11f22dc61df2b2ae50a592:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/cups_1767784795
 * [new ref]         5d352be21014471e9c11f22dc61df2b2ae50a592 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d352be Update code from upstream