BASH_COMMAND should be set before PS0

[Taqras]

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -march=x86-64 -mtune=generic -O2 -pipe -fno-plt 
-DDEFAULT_PATH_VALUE='/usr/local/sbin:/usr/local/bin:/usr/bin' 
-DSTANDARD_UTILS_PATH='/usr/bin' -DSYS_BASHRC='/etc/bash.bashrc' 
-DSYS_BASH_LOGOUT='/etc/bash.bash_logout' -DNON_INTERACTIVE_LOGIN_SHELLS
uname output: Linux EliteBook 5.16.15-arch1-1 #1 SMP PREEMPT Thu, 17 Mar 
2022 00:30:09 +0000 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu

Bash Version: 5.1
Patch Level: 16
Release Status: release

Description:
    PS0:
      The value of this parameter is expanded like PS1 and displayed by
      interactive shells after reading a command and before the command is
      executed.
    BASH_COMMAND:
      The command currently being executed or about to be executed, unless
      the shell is executing a command as the result of a trap, in which
      case it is the command executing at the time of the trap. If
      BASH_COMMAND is unset, it loses its special properties,
      even if it is subsequently reset.
    PROBLEM:
      By the time PS0 is displayed, BASH_COMMAND is still set to the
      previous command, not the command about to be executed.

      And that's just about the only problem:
      Thank you very much for your good work!!!

Repeat-By:
    PS0="$BASH_COMMAND"

Fix:
    Assign BASH_COMMAND before expanding PS0