$ git clone -n https://gitee.com/wenyuzifang/tuna_1772088205.git /var/lib/mock/dist-an23-build-515251-75118/root/chroot_tmpdir/scmroot/tuna_1772088205
Cloning into '/var/lib/mock/dist-an23-build-515251-75118/root/chroot_tmpdir/scmroot/tuna_1772088205'...
$ git fetch origin c50ca995f885a3706040a80722ed656766b64f97:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tuna_1772088205
 * [new ref]         c50ca995f885a3706040a80722ed656766b64f97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c50ca99 Update code from upstream