Issue #3438034 by tannguyenhn, adwivedi008, alex.skrypnyk, alexpott: Fix Composer Scaffold plugin event listeners

Issue #2915036 by ndf, Dane Powell, tim.plunkett, Lendude, jofitz, koppie, larowlan, fubarhouse, sime, alex.skrypnyk, Joseph Zhao: Display mode configurations don't get updated with new fields