This is an elusive problem for which I've already instituted a workaround, so
it's not terribly urgent, but quite vexing nevertheless...

I have a FB5.5 app (with an xml-less config), and there's a function in my
App.cfc called isProduction() that returns a boolean value. I had been setting
an application.mode variable (to 'prod' or 'dev') based on the value returned by
this function, but recently discovered (!) that I could call isProduction() from
pretty much anywhere. However, after recently deploying updates to a testing
environment, I found that the function would not execute in one of my Model
cfc's -- though worked fine in display templates. I did/do not have this
problem on my local dev environment.

Any ideas why the Application.cfc's function would work in a display template
but not in an implicitly-loaded FB Model cfc?

Thanks!