If this is added to the <image> structure in the test file:
preserveAspectRatio="none"
then image export to EMF works again. So apparently the default value for preserveAspectRatio is doing something odd with the scaling, even when the image is not actually scaled.
Observation:
If this is added to the <image> structure in the test file:
preserveAs pectRatio= "none"
then image export to EMF works again. So apparently the default value for preserveAspectRatio is doing something odd with the scaling, even when the image is not actually scaled.