Worked: 2.78c or earlier
Short description of error
Compositor that Auto Render is enabled doesn't re-render or composite even when changes on 3D edits happen.
Confirmed with both Blender Internal and Cycles.
Exact steps for others to reproduce the error
- Open auto_render_test.blend
- On 3D viewport, edit something (e.g. Move default cube)
and then nothing happens with v2.79 (or later)...