$ git clone -n https://gitee.com/wency_cn/guestfs-tools_1770752640.git /var/lib/mock/dist-an23-build-513261-75099/root/chroot_tmpdir/scmroot/guestfs-tools_1770752640
Cloning into '/var/lib/mock/dist-an23-build-513261-75099/root/chroot_tmpdir/scmroot/guestfs-tools_1770752640'...
$ git fetch origin 66683b4b848a79db15e41dc9c6c92d79e261634f:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/guestfs-tools_1770752640
 * [new ref]         66683b4b848a79db15e41dc9c6c92d79e261634f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 66683b4 Update code from upstream