Unicode basic rule is that character definitions never ever change, even when enumerated erroneously.
ꙮ ꙮ
ꙮ ꙮ ꙮ
ꙮ ꙮ
Make a new character. Updating the existing character ruins the meaning of all previous usages.
It's like trying to change an API. Don't disrespect your existing users. Make a new version.
(ꙮ ͜ʖꙮ)
Think of all the ASCII art this botches. That has to have some historical importance to the Unicode standards body.
(⌐ꙮ_ꙮ)
For scholarly digital (unprinted) documents where the correct character rendering matters, erroneous past usages can be trivially found with grep, a date search, and easily corrected. The domain experts will familiarize themselves with this issue and fix the problem. Don't take a shotgun to it!
This message wꙮn't have the ꙮriginally intended meaning if the characters are updated from underneath.
ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ ꙮ