RouteConverter and Mac OS X

[routeconverter]

I don't see a bug either, but it's not the insert only. I also did a right-click "zoom in" and a right-click "center". These are also executed 3 times.
Could it be that it's not the contextmenucontrol.js as such but that "something" offers the action 3 times to this contextmenucontrol.js?

You're right. _Every_ AJAX request is processed three times. I've extended the debug output logging (again). Please try the latest prerelease, probably there's some hint, where this effect is coming from.