message: Pass boundaries don't have any sub-draw modifications, same as clears
diff: @@ -135,7 +135,7 @@ public:
  const QList<PixelModification> &mods = getMods(parent);
  const DrawcallDescription *draw = m_Ctx.GetDrawcall(mods.front().eventId);
  - if(draw && draw->flags & DrawFlags::Clear)
  + if(draw && draw->flags & (DrawFlags::Clear | DrawFlags::PassBoundary))
  return 0;
  return mods.count();
  