Even showing an non-blurred line is likely wrong in this case. The filter
effects area is not supposed take into account any stroke the object may
have, so the bounding box of a horizontal line will have height of zero.
Since the filter effects area is usually calculated as percentage of the
object bounding box, the filter effects area will be also zero-height and
thus the filter result shouldn't be visible at all.
Originator: NO
Even showing an non-blurred line is likely wrong in this case. The filter
effects area is not supposed take into account any stroke the object may
have, so the bounding box of a horizontal line will have height of zero.
Since the filter effects area is usually calculated as percentage of the
object bounding box, the filter effects area will be also zero-height and
thus the filter result shouldn't be visible at all.