AC 4.0.5 resets internal rangefinder parameters while AC 3.6.11 does not

I am using Pixhawk Mini with AC 4.0.5:

AC 4.0.5 resets “Lost Signal Confirm Time” in the SF11c to its default value of 0.05 after connecting the rangefinder to I2C bus.

The AC 3.6.11 does NOT reset this or any other parameter inside the SF11c rangefinder.
Is there a parameter in AC 4.0.5 that I should change to fix this problem?