[Users] more infinite loop

[Charles Lane]

Well, just ran across another email that
caused claws-mail to loop until killed.
(just trying to display the email triggered
the looping).
 
Not quite spam, because it's from an outfit
I order from occasionally, but definitely
commercial email. 

Last time this was happening, it was a 
different company, and updating pango
from 1.48.4 to 1.48.10 fixed the problem, 
because it was in the pango hyphen-handling
code. 

So, I thought I'd try updating pango to the
most-recent version (1.49.4) fixed it, before
trying all the debug tracing; and
YES it did. So I thought I'd give others
a heads-up. 

The email was from Legal Seafood,
Subject: Don't Miss Cyber Monday Savings! 🐟
and sent via MailChimp. 

I'm running Fedora33 with claws-mail 3.18.0
-- 
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