Re[2]: wait skips signals but first one

[Mykyta Dorokhin]

Like you, I can't reproduce it on the desktop platforms I have available
right now.

The bash devel git branch has fairly fine granularity. If you can automate
the signal sending somewhat, maybe by having a child process send signals
to $$, you could use your script and `git bisect' to find the commit where
the behavior changed. bash-5.0 was frozen 12/31/2018, and bash-5.1 was
frozen 12/14/2020, so that should get you started with the devel branch
commits you want to inspect.

http://git.savannah.gnu.org/cgit/bash.git/log/?h=devel

I have found the commit on devel branch which breaks things for me (and 
probably other Yocto-based builds):

This one still works
======================

commit 89d788fb0152724a93e0fdab8c15116e5c76572b
Author: Chet Ramey <chet.ramey@case.edu>
Date:   Mon Feb 17 11:41:35 2020 -0500

   commit bash-20200214 snapshot

This one not
======================


commit 0df4ddca3f371bc258fe4185cdec36fce3e7be7b
Author: Chet Ramey <chet.ramey@case.edu>
Date:   Mon Feb 24 10:41:37 2020 -0500

   commit bash-20200221 snapshot


Please take a look. Maybe you'll notice something suspicious there. I don't 
know... uninitialized variables, endian-dependent code, etc.


Thank you,
Mykyta