$ git clone -n https://gitee.com/wenyuzifang/tuna_1772091312.git /var/lib/mock/dist-an23-build-515290-75118/root/chroot_tmpdir/scmroot/tuna_1772091312
Cloning into '/var/lib/mock/dist-an23-build-515290-75118/root/chroot_tmpdir/scmroot/tuna_1772091312'...
$ git fetch origin 90bccf53bb350e3cdfe42ddcc492fc58e401d8c9:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tuna_1772091312
 * [new ref]         90bccf53bb350e3cdfe42ddcc492fc58e401d8c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90bccf5 Update code from upstream