It seems the label value is double-freed in sp-guide.cpp (http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/view/14380/src/sp-guide.cpp#L106) and in display/guideline.cpp (http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/view/14380/src/display/guideline.cpp#L231). Removing sp-guide.cpp:106 seems to fix the issue (and related crashes and encoding issues).
It seems the label value is double-freed in sp-guide.cpp (http:// bazaar. launchpad. net/~inkscape. dev/inkscape/ trunk/view/ 14380/src/ sp-guide. cpp#L106) and in display/ guideline. cpp (http:// bazaar. launchpad. net/~inkscape. dev/inkscape/ trunk/view/ 14380/src/ display/ guideline. cpp#L231). Removing sp-guide.cpp:106 seems to fix the issue (and related crashes and encoding issues).