$ git clone -n https://gitee.com/wenjie2025/tuna.git /var/lib/mock/dist-an23-build-493506-74562/root/chroot_tmpdir/scmroot/tuna
Cloning into '/var/lib/mock/dist-an23-build-493506-74562/root/chroot_tmpdir/scmroot/tuna'...
$ git fetch origin 2b11b7b258ee5a45bbc29d6221b540ae25e29e27:KOJI_FETCH_HEAD
From https://gitee.com/wenjie2025/tuna
 * [new ref]         2b11b7b258ee5a45bbc29d6221b540ae25e29e27 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b11b7b Update code from upstream