Automatic crop does not update {DstWidth}

[Spriggana]

A simple script:
<Automatic_crop method="0" position="0" color="#ffffff" tolerance="0" direction="15"/>
<Output folder="" filename="{Filename}_{DstWidth}" case="1" startIndex="1" format="PNG">
[…]
</Output>
saves an image with the width of the image before cropping.

[xnview]

right, but difficult to fix, the filename are built before the process