`on_loading_screen_dismissed` is wrongly triggered when executing command `vid_restart`

[nltp-ashes]

When executing vid_restart, the callback on_loading_screen_dismissed is triggered.

This does not correspond to its description in gamedata/scripts/callbacks_gameobject.script :

-- Callback for when player dismisses loading screen after "Press Any Key to Continue" pressed
_G.OnLoadingScreenDismissed = function()
	SendScriptCallback("on_loading_screen_dismissed")
end

This means on_loading_screen_dismissed can be sent multiple times in a script's lifetime, something that is often unexpected by modders.