$ git clone -n https://gitee.com/fundawang/ca-certificates.git /var/lib/mock/dist-an23-build-314513-67535/root/chroot_tmpdir/scmroot/ca-certificates
Cloning into '/var/lib/mock/dist-an23-build-314513-67535/root/chroot_tmpdir/scmroot/ca-certificates'...
$ git fetch origin 0ea2464380d8066170242494ef6f9f64e5408932:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/ca-certificates
 * [new ref]         0ea2464380d8066170242494ef6f9f64e5408932 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ea2464 update dir