Blast furnace incorrectly capitalized as “Blast Furnace” in subtitles

I was smelting something in a blast furnace with subtitles on, but then I noticed “Blast Furnace crackles”. This is a bug.

What I expected to happen was...:
When the blast furnace is smelting, the subtitle should say “Blast furnace crackles”.

What actually happened was...:
Instead, it says “Blast Furnace crackles”.

Steps to Reproduce:

1. Turn in subtitles.
2. Put fuel in blast furnace.
3. Put ingredient in blast furnace
4. Notice it says “Blast Furnace crackles” instead of “Blast furnace crackles”.