Blender render uses Cycles passes for some reason.
I rendered the scene in Cycles with diffuse, UV, and combined pass. Then switched to Blender render to only render another UV pass, but when rendering, passes include those that were used in Cycles. Also takes a lot more time than expected.

http://www.pasteall.org/pic/show.php?id=60674

Compositing wasn't in use, material override didn't help, deleting Cycles materials didn't cut it either. Only thing that helped was going back to Cycles render and disabling those render passes.

# Blender version with error
2.69.1 r60681, 2.68a
on Linux 32-bit, nVidia graphics

# Steps for others to reproduce the error (preferably based on attached .blend file)
- Open attached .blend
- Press F12 to render (small resolution)
- See render passes in UV/Image editor