Protect against undefined ScreenObject in `me.state.change()`
Protect against undefined ScreenObject in `me.state.change()`

gopalindians/melonJS,srbala/melonJS,melonjs/melonJS,srbala/melonJS,melonjs/melonJS,MarkoIvanetic/melonJS,Smoss/Enoru-eco,TukekeSoft/melonJS,rlugojr/melonJS,gopalindians/melonJS,TukekeSoft/melonJS,rlugojr/melonJS,Smoss/Enoru-eco,srbala/melonJS,MarkoIvanetic/melonJS,gopalindians/melonJS,TukekeSoft/melonJS,rlugojr/melonJS