Maciej,
I belive you used arc diff comparing with the wrong branch. I can't apply this in my work branch.
Can you update the patch using the right branch to generate the diff?

In D18250#393326, @tcanabrava wrote:

Maciej,
I belive you used arc diff comparing with the wrong branch. I can't apply this in my work branch.
Can you update the patch using the right branch to generate the diff?

I still cannot predict what arc will do :(. I should stick to web ui for now :D. Try this one https://phabricator.kde.org/D18259