[bug-gawk] Regression bug.

[Carlo Wood]

Hi,

after upgrading Ubuntu to Xenial, a script of me stopped working,
which I traced back to a regression in gawk.

I checked out the git repository, and did a git bisect:

31c6051694d3152e50eb037e20c4734c7321eac6 is the first bad commit
commit 31c6051694d3152e50eb037e20c4734c7321eac6
Author: Arnold D. Robbins <address@hidden>
Date:   Sun Nov 16 19:54:57 2014 +0200

    Add field reference changes. Currently breaks sortglos test.


This makes sense because what happens is that some array
starts to contain undefined / uninitialized values. So, I'm
convinced that indeed this commit is buggy and caused the
problem.

Note that every version after this commit is bad, also current
HEAD.

Unfortunately, I cannot easily make a small test-case;
I can however give instructions on how to reproduce the
problem if you are interested in doing so.

-- 
Carlo Wood <address@hidden>