Some links open a new tab in Torbutton 1.4.0+

Someone in #tor claimed that if you click on the "segue" link in the "Primary Pagina" frame of http://www.calciocatania.it/, it opens in a new tab in Torbutton 1.4.0-1.4.3, but does not do this in 1.3.3 and below.

I confirmed that it also opens in a new tab in TBB.

If this is a property of many sites, we should fix it soon.