$ git clone -n https://gitee.com/zhuzhustu/i2c-tools.git /var/lib/mock/dist-an23-build-524894-77908/root/chroot_tmpdir/scmroot/i2c-tools
Cloning into '/var/lib/mock/dist-an23-build-524894-77908/root/chroot_tmpdir/scmroot/i2c-tools'...
$ git fetch origin 5ffe991831b1577829c75c46fa21558c62e5e0bb:KOJI_FETCH_HEAD
From https://gitee.com/zhuzhustu/i2c-tools
 * [new ref]         5ffe991831b1577829c75c46fa21558c62e5e0bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ffe991 update i2c-tools.spec.