[Users] Freeze while fetching (showing?) message

[Johan Vromans]

On Mon, 31 Aug 2020 18:01:52 +0200, Johan Vromans <jvromans at squirrel.nl>
wrote:

> On Mon, 31 Aug 2020 15:56:21 -0000, Paul <claws at thewildbeast.co.uk> wrote:
> 
> > I tested it with the Claws Mail 3.17.6 package on Fedora 31, MH mailbox,
> > and there is no problem viewing that message.  

This sounds suspiciously like issue
https://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=4379