Comment 13 for bug 459811

oops - sorry, I thought you'd figured that out ;-)

To reset the ellipse tool: For me it works to
1) make sure you quit Inkscape
2) set the second set of start/end values (inside the <eventcontext id="arc" …>) to 0, save
3) and restart Inkscape.

Do you agree about the duplicate? (I have already changed the status of older report from 'Invalid' to 'Confirmed' and raised the importance to 'Medium')