$ git clone -n https://gitee.com/wency_cn/tuna_1768587347.git /var/lib/mock/dist-an23-build-507737-74937/root/chroot_tmpdir/scmroot/tuna_1768587347
Cloning into '/var/lib/mock/dist-an23-build-507737-74937/root/chroot_tmpdir/scmroot/tuna_1768587347'...
$ git fetch origin 2cff4e1c68eb9659c5f5156524b7f35788766dc0:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/tuna_1768587347
 * [new ref]         2cff4e1c68eb9659c5f5156524b7f35788766dc0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2cff4e1 Update code from upstream