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incorrect character handling

From: by . sm
Subject: incorrect character handling
Date: Wed, 31 Mar 2021 02:31:46 +0700 (+07)

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: darwin18.7.0
Compiler: clang
uname output: Darwin Mac 18.6.0 Darwin Kernel Version 18.6.0: Thu Apr 25 
23:16:27 PDT 2019; root:xnu-4903.261.4~2/RELEASE_X86_64 x86_64
Machine Type: x86_64-apple-darwin18.7.0

Bash Version: 5.1
Patch Level: 4
Release Status: release

        Bash (zsh/ash/etc) has incorrect character handling, when spec symbols 
use in another program and work with stdout. Problem with command "!!", "!", 
"$", etc.

Example: use standart output to console by python3:
python3 -c "print('ls')"

It's return ls to stdout. But if i print something like:
python3 -c "print('wow, it\'s working !!)"

bash will process "!!" like a command and substitute the previous command.
Will work the same way constructions like:

python3 -c "print('!!')"

That return 'whoami' command. 

        I checked this bug in python3 (is an examples above), with command echo 
and with command git commit -m "commit!!"
All command return stdout with previous command. This can be used for bypass 
something local settings, like a ban on executable command, like run command 
with NOPASSWD param and so on. 

        [Description of how to fix the problem.  If you don't know a
        fix for the problem, don't include this section.]

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