[bug #68420] [troff] assertion failures on impossible {normal, no-break} control character assignments

Follow-up Comment #11, bug #68420 (group groff):

Hi Martin,

[comment #9 comment #9:]
>> ...that is hasn't changed in 14 years.  In other words, ProofPoint
>> hasn't touched the document since they acquired it as an asset of
>> Sendmail, Inc.
> 
> That looks like a 14 year old snapshot of sendmail 8.14.5, not the live
> sources.
> 
> The error is repeatable with sendmail 8.18.2 from
> 
> https://ftp.sendmail.org/sendmail.8.18.2.tar.gz
> 
> (linked from
> https://www.proofpoint.com/us/products/email-protection/open-source-email-solution).
> 
> From the FreeBSD import of sendmail, it looks like the .cc was added between
> 8.16.1 and 8.17.1.

Ah, yes.  I got it and can reproduce the problem.

I suspect Eric Allman did not have a hand in this change.

I believe the input to be erroneous.

But GNU _troff_ will no longer core dump about it now.


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