My comment was related to what a regression of an application is supposed to be, respectively something worked fine and in the same context a new version of the app does not work anymore. Because the description was saying that the problem showed up after enabling Address Space Layout Randomization (ASLR), sounded like a new context, plus that there was no change to app_lua. Similar, we do not say that it is a regression because a module does not work with a new library version, but rather *lib version N not supported yet*. But of course, this could be own interpretation.
If ASLR is enabled on Debian/Ubuntu, then it is something specific to the FreeBSD implementation.