Group: current SVN version
I imported some DXF data into blender using the import DXF plugin 1.0.12 (using attached ini file).
Joined all the meshes. Then erased the resulting object.
Noticed around 400 objects remained, but not in any scene. Wrote the attached python script to try to put them back in the scene, so I can delete them. After putting them back in the scene and deleting them, they just went out of the scene again. This process can be repeated forever.
Opening / Closing file does not change object count.
See attached blender file.