[TYPO3-dev] GraphicsMagick always converts all layers from .psd

[Oliver Salzburg]

I was wondering why TYPO3 wouldn't generate thumbnails for .psd files
so I went digging. I use GraphicsMagick for this installation and it
seems like GraphicsMagick always converts all layers of the .psd.
Which leads to unexpected output filenames.

For example, I have a .psd with 3 layers.
Even though gm is called with "filename.psd[0]" as the input argument,
it will export all 3 layers with .0, .1 and .2 suffixes.

Our hosting provider uses GraphicsMagick 1.3.12. Is this a known issue
to anyone?