Setting nullglob causes variables containing backslashes to be expanded to an empty string

From	Mohamed Akram <mohd.akram@outlook.com>
Newsgroups	gnu.bash.bug
Subject	Setting nullglob causes variables containing backslashes to be expanded to an empty string
Date	2019-08-06 18:18 +0000
Message-ID	<mailman.966.1565121040.1985.bug-bash@gnu.org> (permalink)
References	<5202404D-4B1E-4627-9FDE-2E0C5608A5B7@outlook.com>

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Bash version: GNU bash, version 5.0.7(1)-release (x86_64-apple-darwin18.5.0)

Example:

shopt -s nullglob
a='\x30'
echo $a

Expected output:

\x30

Actual output:

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Setting nullglob causes variables containing backslashes to be expanded to an empty string Mohamed Akram <mohd.akram@outlook.com> - 2019-08-06 18:18 +0000

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