$ git clone -n https://gitee.com/opencloudos-stream/GraphicsMagick.git /var/lib/mock/dist-ocs23-build-33824-1582/root/chroot_tmpdir/scmroot/GraphicsMagick
Cloning into '/var/lib/mock/dist-ocs23-build-33824-1582/root/chroot_tmpdir/scmroot/GraphicsMagick'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/GraphicsMagick
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12d49fa !4 Rebuilt for jasper-libs 4.0.0 Merge pull request !4 from cunshunxia/master