$ git clone -n https://gitee.com/wency_cn/cups_1768915030.git /var/lib/mock/dist-an23-build-508251-74974/root/chroot_tmpdir/scmroot/cups_1768915030
Cloning into '/var/lib/mock/dist-an23-build-508251-74974/root/chroot_tmpdir/scmroot/cups_1768915030'...
$ git fetch origin 0af137d95ffaa137076849265a871bb3f55faaa7:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/cups_1768915030
 * [new ref]         0af137d95ffaa137076849265a871bb3f55faaa7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0af137d Update code from upstream