Hi vpeter, I have just updated to librelec 8.2.0.1 on rpi 3 and find the behaviour has reverted.
Are you able to compile 8.2.0.1 with the fix i previously applied to libcec or do i need to make change against different version?
GitHub - dbrosy/libcec at lgdev
libcec-d9407d3
also be curious to see if anyone else found the last fix work for them