Root and users with proper grants can't create users.

[Draghmar]

Describe the bug

I'm testing 6.0 snapshots and found this weird bug where both root user and additional one with basically root privileges get message You do not have the privileges to administrate the users!. But it's not happening on all snapshots! The first I tried (Sun Feb 18 23:04:25 UTC 2024) didn't have it. But each of the later I tried - did.
Updating in my case was done by creating new folder for new snapshot and copying all the configs from previous one. Maybe that's the lead? Copying configs? But I'm not sure how that could do anything, if they did work on that Feb one...

I did found this report:
#14433
I tried the proposed path but it didn't work. But then again this method is a little bit different in 6.0 then it was back then...
The $this->currentUserAndHost is set to:

array (size=2)
  0 => string 'root' (length=8)
  1 => string 'localhost' (length=9)

And shows up few times on User accounts tab.

Server configuration

• Operating system: Arch Linux
• Web server: Apache/2.4.58
• Database version: 11.3.2-MariaDB
• PHP version: PHP 8.3.4
• phpMyAdmin version: 6.0.0-dev+20240406.938d6b516e