reverseName settings not reapplying correctly

[noplaneupinthesky]

OK - all is back to normal after reversing composers with the comma in my new albums. That's a win. What is weird (and what probably confused things) was that my old "Beethoven, Ludwig van"* albums moved under L when I added the 10 new albums with Ludwig van Beethoven as composer. All the other old correct "last, first" carried on displaying as "First Last" indexed by Last. Does that make any sense?
* When I adopted Minimserver I renamed all my composers to this format to use the reverseName feature. A lot of mp3tag work.