Diffusion Krita 59d8e62207ac

Add a comment about merging adjustment layers

Authored by dkazakov on Sep 20 2019, 1:59 PM.

Description

Add a comment about merging adjustment layers

Krita sticks to "keep image unchanged" approach when merging layers,
just state it clearly in the code, so we wouldn't spend time on
discussing that again.

CCBUG:398990