[0.12.4][Twinsen] Electric Furnace still glowing without power

[Alvin853]

When an electric furnace loses power the exact moment it is starting a new production cycle the furnace still glows. It is correctly shut down, but the sprite doesn't change to the "off" state. Example:

[Twinsen]

I was not able to clearly reproduce the bug, but I believe I found and fixed the issue for 0.12.5.
Reply to this thread if the problem is still there.