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From: Robert Elz <kre@munnari.OZ.AU>
Newsgroups: gnu.bash.bug
Subject: Re: Filename Expansion bug
Date: Sat, 11 Jan 2020 08:39:45 +0700
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    Date:        Thu, 9 Jan 2020 12:09:22 +0100
    From:        Mickael KENIKSSI <k.mickael=40gmail.com>
    Message-ID:  <CAJV=3DESHn1G2+9FSdtpTPT+CtqahNMiWJtRTE71PagS=3DH+2VA8A=
=40mail.gmail.com>

  =7C zsh (and ksh) provide the expected result:

As far as I can tell, all shells except bash preserve the
null components, regardless of whether or not pattern chars
appear in filenames to the right or left of the last/first '/'.

I don't think it is a good idea to rely on any specific
behaviour here though - about the only string it makes
sense to compare the results of a pathname expansion with is
the initial pattern (considered as a string) and even there
extreme care is required (particularly if you don't control
the pattern).

That said, I also see no particularly good reason why bash should
be the outlier here.

kre