1.21.4 paper and legacy color codes in title

[Gypopo]

Seems like 1.21.4 paper doesn't support legacy color codes in the title of the Anvil when sent using a packet.
This works fine using the Bukkit API but since AnvilGUI uses NMS and packets to open the inventory, players get kicked with a message(screenshot below) that legacy color codes aren't supported by MiniMessage while trying to open a AnvilGUI with legacy color codes in its title.

I tested this on paper 1.21.3 and spigot 1.21.4 which both work fine, so it seems like paper 1.21.4+(which is the version which will drop future Spigot updates) causes this, this would need to be confirmed though.

[LOOHP]

Did you make the mistake of marking your commit in another repository fixes this issue?

[Gypopo]

Ah, mb, I did. Well, I also opened a PR which should fixes this, so if anyone can look into it and merge then I guess this can be closed for good :)
I tested this with my plugin btw, which works fine now. You can reproduce this on v1.10.4 on paper 1.21.4 if you wanted to test it yourself.