**System Information**
Operating system and graphics card
win7 64bit gtx titan
**Blender Version**
blender-2.70-6aa75d3-win64
**Short description of error**
Two scenes S1 and S2(full copy). Each with a render layer. On S1 the node editor is pinned.
Disabling Z pass on S2 does not update the node editor. Disabling Z, saving the file and reloading shows the node correctly though.
**Exact steps for others to reproduce the error**
Check the attached blend file and image. Just open and toggle the Z pass. The node of the render layer will not update.
However if you save the blend and reload it will update the UI correctly.
Thank you.