M503 reporting 'normal' and 'stealth' parms - messes up OctoPrint's PrintTimeGenius  

M503 reporting 'normal' and 'stealth' parms - messes up OctoPrint's PrintTimeGenius

How long has mk3s+ been reporting 'normal' and 'stealth' parms in M503? I only recently noticed this when fault-finding why the PrintTimeGenius plugin for OctoPrint was miscalculating print times (it is using the stealth parms instead of normal).

I *think* it started around the time I upgraded to 3.14.0 firmware.

I'm not really familiar with GCode and M503/M500. Can anyone provide pointers as to how M503 came to have both sets of parms? I can only imagine a firmware upgrade or PrusaSlicer set it.

Is there a way to 'delete' the stealth settings? Would that cause problems later if a sliced for stealth?

Example M503 output:

Send: M503
Recv: echo:Steps per unit:
Recv: echo:  M92 X100.00 Y100.00 Z400.00 E280.00
Recv: echo:UStep resolution:
Recv: echo: M350 X16 Y16 Z16 E32
Recv: echo:Maximum feedrates - normal (mm/s):
Recv: echo:  M203 X200.00 Y200.00 Z12.00 E120.00
Recv: echo:Maximum feedrates - stealth (mm/s):
Recv: echo:  M203 X100.00 Y100.00 Z12.00 E120.00
Recv: echo:Maximum acceleration - normal (mm/s2):
Recv: echo:  M201 X1000 Y1000 Z200 E5000
Recv: echo:Maximum acceleration - stealth (mm/s2):
Recv: echo:  M201 X960 Y960 Z200 E5000
Recv: echo:Acceleration: P=print, R=retract, T=travel
Recv: echo:  M204 P1000.00 R1250.00 T1000.00