Comment 2 for bug 1662812

The regression could be related to the new 'Stroke to path' command implemented based on
* Bug #1556592 “Stroke to fill retaining fills”
  https://bugs.launchpad.net/inkscape/+bug/1556592
but it is not exposed with the initial implementation (lp:inkscape r15035, r15036 on OS X 10.7.5 do not reproduce the reported issue). A later commit (r15100) changed the initial behavior to only create a group if the stroked object has a fill (no archived builds of trunk available to further bisect, unfortunately).