https://bugs.kde.org/show_bug.cgi?id=468288

--- Comment #3 from Mirco Miranda <mirco...@gmail.com> ---
(In reply to Albert Astals Cid from comment #2)
> Mirco, I can also reproduce this locally (CI seems happy though).
> 
> What can we do to help debug this?

It's the problem I had about a month ago after my last patch to the psd plugin.
For me it worked locally (debian unstable) but failed on invent (all vms). That
image is the only one with premultiplied alpha and alpha values other than 255.
In my case it changed a few pixels and it seemed due to rounding differences in
the conversion from RBG8888_Premul to ARGB32.
I then assumed that my distro (install dated 2006) was the problem and so I
used invent's comparison png.

To help with debugging I must definitely reintroduce Base64 printing of the
image on failure. I do this in the afternoon and then try to figure out what's
going on.

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