"The tight credits" also have a crude looking transition to the scrolling titles where part of Jack Purvis is still there and even starts to scroll before John Barry appears. Seems to be a slight glitch of some sort. I assume this is the point were the the revised credits begins with a new dissolve in place. I doubt this would be the reason for it, but I just thought I would point it out.
The revised credits much smoother transition from static to scrolling titles:
