COM_LOW_BAT_ACT "Land mode" currently seems to be broken

[taileron]

Describe the bug
vehicle doesn´t autoland anymore at critical or emergency battery level
autoland gets announced (in COM_BAT_ACT_T e.g. 10sec or 0sec) but no more executed
happens with gps and indoors as well

To Reproduce
Steps to reproduce the behavior:
that problem seems to be introduced, since the new parameter COM_BAT_ACT_T exists

Expected behavior
Vehicle auto-lands at the desired low bat level
This function is particularly important for very small fliers with short flight times.
(Better to land than to fall from the sky...)

Log Files and Screenshots
Vehicele currently does no logs ...
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• Download the flight log file from the vehicle (tutorial).
• Share the link to a log showing the problem on PX4 Flight Review.

Add screenshots to help explain your problem.

Drone (please complete the following information):

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• Photo of the IMU / autopilot setup if possible.

Additional context
Here is the parameter set of the vehicle:
ScorpionLowBatAutoLandBroken.params.zip

[taileron]

The current master (2022.03.28) now lands but only when COM_BAT_ACT_T is 1 sec or above and perfect gps fix is available.
Without gps or COM_BAT_ACT_T = 0 only the announcement landing in 0 sec is issued but the landing gets not executed.

this would be relatively important for small vehicles with short flight times to avoid damage of the device or lipo.