horisontal or vertical lines cannot blur

[pRototype]

Using Inkscape 0.48+devel r9861
OS = Windows XP sp2

Recreate procedure:
Create a line that contins only two nodes and let the line be either straight horisontal or straight vertical.
Now, try using "Fill and Stroke" --> "Stroke Style" and make it blur.

I can make the line blur, but ONLY if I insert a new node and make it so that the path get a bend.

[su_v (suv-lp)]

Linking as duplicate to bug #168943 “Blurring a zero-height or zero-width path”
<https://bugs.launchpad.net/inkscape/+bug/168943>

Please add a comment here and revert the duplicate status if you don't agree and think these are different issues.