I ran across the same issue with Bootstrap navigation. It seemed rather kludgy to use the doubled link method.
Although I cannot recall where I found this, here is a solution for getting the active status of the parent element, but setting up the link correctly. Obviously the link-to target route needs to be changed, but the bind-attr href should be left as is.
The other issue I ran across is I want the entire parent li block to have a finger pointer when moused over, for the entire block to appear to the end user as a link. To get this behavior, add this to your css.
.navbar-nav > li > a {
cursor: pointer;
}
Ideally I should build a handlebars helper or component to take care of this, but I have yet to actually learn how to do this. Right now I just keep this as a Gist where I can quickly copy and paste it into my projects.
Hopefully this saves you the day of consternation I endured to figure this out!