Use of CANCEL TAG in emoji flags

[Sławomir Osipiuk]

Alexei Chimendez submitted a report last year about the problematic use of
CANCEL TAG for flag emojis:
https://www.unicode.org/L2/L2021/21127-edcom-rept-utc168.html

This was turned into an action item for Markus Scherer and the Properties
and Algorithms Group:
https://www.unicode.org/L2/L2021/21123.htm#168-A30

Is there any further information about this issue or the progress on it?

Thanks,
Sławomir Osipiuk