$ git clone -n https://gitee.com/opencloudos-stream/golang-gopkg-sourcemap-1.git /var/lib/mock/dist-oc9-epol-build-104601-66442/root/chroot_tmpdir/scmroot/golang-gopkg-sourcemap-1
Cloning into '/var/lib/mock/dist-oc9-epol-build-104601-66442/root/chroot_tmpdir/scmroot/golang-gopkg-sourcemap-1'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/golang-gopkg-sourcemap-1
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0d88d8 update