A HP 15CE keyboard handler bug?

[brouhaha]

(02-02-2024 08:24 AM)Martin Hepperle Wrote:  Also, pressing 'f' toggles the 'f' annunciator, but pressing it again does not toggle if back to unlit. Same for 'g'. Is this intended behavior?

Yes. to cancel the f shift, press the backarrow key, whose f-shifted function is "clear prefix".

To cancel the g-shfit, press f and then backarrow.

HP established that mulltiple presses of the shift key don't toggle it at least as far back as the HP-80, in 1973. With calculators that didn't display the shift state(s), I suppose that made sense.