My wrong ...
Mixing the older versions Condition Levers (no Notch) of the 300, with the Condition Levers of the newer versions of the 500 and 600 series. It's been a while.
In reality in the newer Condition Levers, with a Notch at the 'AUTO' position, it is also necessary to use the trigger (a pushbotton) to remove it from the 'AUTO' rearwards towards the 'FTR' position.
Far less likely that the Condition Levers would have been moved from the 'AUTO' by mistaking the
the Levers.
Sorry !!!