Spiro LPE changes on moving them

[Joshua Blocher]

The curves of the spiro LPE change drastically when moved.
I'm attaching a sample svg and a small ogg video.

[Joshua Blocher (verbalshadow)]

Video of changes.

[hash (hash-g)]

Inkscape 0.46+devel, revision 20101, built Oct 29 2008 xp sp3
Easy way to reproduce use a Star Tool corners about 15
Object to path, select all nodes convert to smooth
Apply spiro
Move around.

[Alvin Penner (apenner)]

running Windows XP, Inkscape 0.47pre3, I think this particular rendering problem has been fixed, although there are still cases of bad behaviour that can occur.

after the initial load of the file "spiro randomize", there was one specific node that was clearly bad (cusp), at coordinates (348.7, 450.1). However, when I click on the icon to make the node smooth, then it became smooth, and I believe the other nodes are smooth as well.

[Pablo Trabajos (pajarico)]

When I open the file different things happen:
* 0.46 opens the original path like there wasn't any LPE applied.
* 0.47pre2 opens it and moving it doesn't change the shape.
*pre3 does the same however the look is quite different, not sure what's the intended shape.

[jazzynico (jazzynico)]

Not reproduced on Windows XP, Inkscape 0.47 and 0.48.