darktable-org/darktable — pull request #762 by LebedevRI (2014-11-21 16:54:26+00:00)
Title: Blend: do not show "display mask" for raw iops

This is a usability fix we have discussed with @upegelow
I'm not 100% sure that it is

TODO: revisit if/once there semi-raw iops (e.g temperature) with IOP_FLAGS_SUPPORTS_BLENDING