> workaround: change the stroke-width slightly or remove the stroke
> when you just slightly change the stroke width (about ± 0.1px) of the misrendered path the original fill color
> or correct display is restored.
wow, i only had a few black lines at the top but that workaround resulted in a total destruction of the result *g
maybe i will produce a scaled-down bitmap from the correctly exported PDF as workaround, but this bug is indeed a pretty foul one xD