$ git clone -n https://gitee.com/wency_cn/cups_1767160891.git /var/lib/mock/dist-an23-build-502838-74825/root/chroot_tmpdir/scmroot/cups_1767160891
Cloning into '/var/lib/mock/dist-an23-build-502838-74825/root/chroot_tmpdir/scmroot/cups_1767160891'...
$ git fetch origin a2eb99bdf11de4844cd3087447cdeb3efdce68a9:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/cups_1767160891
 * [new ref]         a2eb99bdf11de4844cd3087447cdeb3efdce68a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2eb99b Update code from upstream