I have just rewatched the short George Lucas in love (1999) by Joe Nussbaum.
It depicts a young George Lucas trying to write a script for his graduation while the Star Wars world is all around him in the campus.
In this short, all George Lucas' scripts have no actual titles, but only some weird alphanumeric string of characters.
I wonder: is that a joke I don't get about the star Wars series (or George Lucas himself)? Or is it just for fun?