$ git clone -n https://gitee.com/opencloudos-stream/SDL2_net.git /var/lib/mock/dist-oc9-epol-build-75189-52178/root/chroot_tmpdir/scmroot/SDL2_net
Cloning into '/var/lib/mock/dist-oc9-epol-build-75189-52178/root/chroot_tmpdir/scmroot/SDL2_net'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/SDL2_net
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 648e9c8 package init