Weird Joomla JRoute() behavior
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Why does JRoute include parts that weren't set in the output SEF Url ?

Example:
I have a view that lists Items, every item links to another view (Item) with an ID. When I put all parts of the query string together I get both views on the URL:

domain.com/index.php/component/ **items**/ **item**/1-alias

instead of

domain.com/index.php/component/**item**/1-alias 

because I use different views for all the parts of the component and not layouts.

Both URLs work just fine, but why does it do that? I don't want it to build the SEF URL with the original view of Items, just the view for single items. It wouldn't be a problem if the Item view wasn't getting the menu param of the Items view.