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Using eduke32_win64_20180412-6834
windows 10 Pro x64

Double Button 2 cannot be set to "-none-"
If the game is quit and restarted, double button 2 will be set back to the last assignment prior to being set to none.

e.g. set double button to 'fire'. it stays that way indefinitely until changed.
set it to 'none', game will play and keep it that way. Quit and launch - double button 2 will be revert back to 'fire'

-change it from 'fire' to 'jump', will stay 'jump' indefinitely until physically changed. change it again from 'jump' to 'none' - restarting will revert the assignment back to 'jump'


(this has been going on for a few snapshots prior to this one)
(it may be affecting the other buttons as well, but i don't want to screw with them).