Fix premature ADDED_TO_STAGE event (fix #1248)
Fix premature ADDED_TO_STAGE event (fix #1248)

Gama11/openfl,NenadBojkovski/openfl,openfl/openfl,Gama11/openfl,Gama11/openfl,NenadBojkovski/openfl,openfl/openfl,Gama11/openfl,openfl/openfl