avoid_warnings=2 doesn't work in bookworm

[dasl-]

Describe the bug
In bookworm, putting avoid_warnings=2 in /boot/config.txt does not prevent throttling due to undervoltage from occurring.

To reproduce

1. Install bookworm.
2. Put avoid_warnings=2 in /boot/config.txt.
3. Use a shoddy power supply.
4. Observe many messages like [Fri Oct 20 23:36:15 2023] hwmon hwmon1: Undervoltage detected! in dmesg -T output
5. Furthermore, observe that the output of vcgencmd get_throttled indicates throttling has occurred due to undervoltage

Expected behaviour
When running with avoid_warnings=2, there should be no undervoltage messages in dmesg, nor should there be throttling occurring due to undervoltage observed via vcgencmd get_throttled.

Actual behaviour
See reproduction steps above.

System
I apologize because I wiped the system before capturing the below diagnostics. But I had just today (2023-10-20) installed the latest 32 bit bookworm lite release with this download URL.

• Which model of Raspberry Pi? 4B
• Which OS and version (cat /etc/rpi-issue)?
• Which firmware version (vcgencmd version)?
• Which kernel version (uname -a)?

Logs

[Sat Sep 16 17:29:37 2023] hwmon hwmon1: Undervoltage detected!
[Sat Sep 16 17:29:43 2023] hwmon hwmon1: Voltage normalised

Additional context
n/a

[Stooovie]

same