Parking light question on 68 Dart

Perfectly normal, that's how it supposed to be on a '68. I found a way to keep them on with the headlights though, see this thread:

http://www.forabodiesonly.com/mopar/showthread.php?t=112080
I was curious after reading this thread,so went out to check on my stock 68 Barracuda.My front parking lights stay on when turning headlights on.Just thought I,d mention..