$ git clone -n https://gitee.com/opencloudos-stream/rust-target-lexicon.git /var/lib/mock/dist-oc9-epol-build-89465-58424/root/chroot_tmpdir/scmroot/rust-target-lexicon
Cloning into '/var/lib/mock/dist-oc9-epol-build-89465-58424/root/chroot_tmpdir/scmroot/rust-target-lexicon'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rust-target-lexicon
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e4cae5 update