Fix for view look-at orientation bugs.

Force a manual re-calc of view parameters inside update. Will refactor
this in the future since shouldn’t really be necessary.

Ticket: https://sourceforge.net/p/flightgear/codetickets/1855/

src/Viewer/view.cxx

@@ -850,6 +850,7 @@ void
 View::update (double dt)
 {
     updateData();
+    recalc();
   updateDampOutput(dt);
 
   int i;