[0.18.21] Some sounds keep playing while paused in map editor

[Illiou]

When pausing the time in the map editor, most sounds will fade out like expected but some keep on playing forever.

The ones that I noticed are combinators and nuclear reactors, though there may be more.

[Rseding91]

Thanks for the re port. That's intended: sounds that are based on entity state changing will stop (since the state is paused), sounds that just "play when it's on" keep playing because it's still on, just not updating.