$ git clone -n https://gitee.com/opencloudos-stream/rust-sscanf.git /var/lib/mock/dist-oc9-epol-build-98992-60360/root/chroot_tmpdir/scmroot/rust-sscanf
Cloning into '/var/lib/mock/dist-oc9-epol-build-98992-60360/root/chroot_tmpdir/scmroot/rust-sscanf'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rust-sscanf
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e42ff5 update