Curious demolition [very minor issue]

[s78ucr]

I just noticed that when you demolish a large area [2 squares+] at one go, the 'large' explosion graphic shows.
Was it supposed to do this, or does it just get confused with crashes?
This involves alpha 48

[SpComb]

If you use drag&drop dynamite, it shows large explosions in the corners. If you use normal clicky dynamite it shows a small explosion. I take it that you didn't demolish that polygon in one go.