Blast Furnace ore belt allows input when bar dispenser hasn't been emptied

What I did: Added ore to the Blast Furnace ore belt

What I expected to happen: To not be allowed to do so, as the furnace still had bars left in it

What actually happened: The ore belt allows more ore to be put on it. If the new ore smelted exceeds the dispenser's limit of 28 bars, any further ore processed is simply destroyed.

IDs of related NPCs/items:

2009-era source (if relevant): https://runescape.wiki/w/Blast_Furnace?oldid=901814#Bar_Dispenser

Screenshots or video: 2023-08-03_21-38-35

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