https://github.com/FreeCAD/FreeCAD/pull/393
The Body is portet to use Extensions. Hence it is now recognized as a geofeature group and handled as any other local coordinate system.
Note that this breaks 0.17 file compatibility. Having no backward compatibility is intended, as this happen only for 0.17 files which are created with a development versions. When loading an old file the features will not be within the body anymore. This can be fixed by editing the xml files or drag&drop the features back in (one need to be careful to use the correct order)
Port body to extensions
Re: Port body to extensions
I rebased this pull request on latest master and all checks have passed again.