Issue #3400458 by alexpott, Berdir, longwave, ReINFaTe, mglaman, larowlan,...
Issue #3400458 by alexpott, Berdir, longwave, ReINFaTe, mglaman, larowlan, Charlie ChX Negyesi, kristiaanvandeneynde, cmlara: AttributeClassDiscovery fails while trying to include non valid plugin class