Comment 3 for bug 263071

I am able to add a node with double-click in your sample drawing (Inkscape 0.46+devel r22540) but I agree with you that within the node tool the shortcuts for 'Add node' and 'Guideline properties' are ambiguous and should be untangled to
- either always override the guide properties shortcut while editing a path (you still could double-click the guide outside of the bbox of the currently selected path)
- or use a different method/shortcut for the guide properties dialog.

See also the related topic in the Inkscape forum "Double click guide and path should create node" (<http://www.inkscapeforum.com/viewtopic.php?f=28&t=3662&p=16843>) and the Blueprint page "GuidesImprovement" (<http://wiki.inkscape.org/wiki/index.php/SpecGuidesImprovement#Discussion>)

related blueprints:
- Guides Improvment <https://blueprints.launchpad.net/inkscape/+spec/guides-improvement>
- Is there a blueprint/wiki page for the upcoming new node editor by Krzysztof?