DNet attribute 6 could wrongly show a changed MAC id switch

Configure COMX 10 to use hardware switches for address.
Set hardware switches to any valid value, perform Channel Init.
Change hardware switches to a different value, perform Channel Init.

Now read from master DeviceNet object attribute 3.1.6 (MAC ID Switch changed).
Slave returns 1, expected 0.

Rotate hardware switch to a different value, then back to the original.
Now slave returns 0 for 3.1.6 as expected.