https://bugzilla.redhat.com/show_bug.cgi?id=1809097
--- Comment #14 from Artur Iwicki fedora@svgames.pl --- Ok, I took a better look at the code and yeah, the first thing Autoload::addClassMap() does is register the autoloader, if it wasn't registered already. Weird, I remember having issues with the autoloader not being active when doing a require on the autoload file. Either way, I'll experiment with this and switch back requiring the autoloader file, if it works ok.