Duet 3 Expansion 3HC sensorless homing via CAN

[T3P3Tony]

@tru_ann thanks for testing and reporting this, we will investigate further

[dc42]

@tru_ann I confirm this is a bug and I am looking into it.

[dc42]

@tru_ann this is now fixed in the source code. The fix will be in a new 3.6 beta, RC or internal build soon.

[tru_ann]

@dc42 @T3P3Tony Thank you! It's nice that the problem was fixed so quickly!

[dc42]

@tru_ann there are now unofficial 3.6.0-beta.3+4 builds containing the fix available at https://www.dropbox.com/scl/fo/wyqfqmzj0v7otx6wzqfdl/AJXLaai4nWowqfLtA4gePUk?rlkey=jpyla60xf2tqql0h4nx4sn9yv&dl=0