We have an SP 2013 collaboration site, no customisations. We have set up search navigation to use search scopes set up in our search centre, and configured the drop-down list of scopes in the collaboration site's search box to use the scopes by pointing each item at a URL, with the option to open the link in a new window enabled. However, the links do not open in a new window. I have tried turning MDS off after doing some Google research, this has no effect.
We are running SP 2013 Jan 2016 CU on Windows 2012 R2.