After searching for a reference with "Ctl-/", if I then double-click on the reference in the reference window (the one on the left), the buffer will not switch to the reference location. If I single click it, it shows the code in the right window, and I can double-click the code in this window to take my buffer to that location. Or, if I single click it, and then double-click it, it will change the buffer to the reference location. However, this is extra effort, and I like the old performance better.