I did make the edit to the wiki during 6.2 when I first found the answer
and did intend to follow it up with your devs so that the configuration was
part of the installation process. My apologies. I have now updated that
wiki area to the best that I can to take it from 'this is what I did, as a
test', to 'this will work'. For the loss of the cache, it happened as I had
the wiki running under permissive mode before I switched to enforcing mode
hence my advice on getting the permissions set up at initial install.