Break keyboard key is called "Button3" in key binds menu

If you press the Break key on your keyboard (Pause/Break, while already holding Control to select the latter) and attempt to assign that to a key, instead of correctly showing up as “BREAK”, it incorrectly displays “Button3”, identically to the middle mouse button.

To reproduce:

• go to Key Binds menu

• hold Control

• click on something to rebind

• press the Pause/Break key

Expected results: you would see “Break”.

Actual results: you see Button3.