mail/claws-mail: freezes when using mail/claws-mail-rssyl

[Beeblebrox]

I have been using mail/claws-mail for some time with the mail/claws-mail-rssyl together with several other plugins.

A recent update (probably r371528 or r371648) broke the mail/claws-mail-rssyl such that:
* When started, claws-mail flickers and items in left panel move erratically.
* Does not respond to any mouse action and freezes.
* Can only be killed with "kill -9"

Uninstalling mail/claws-mail-rssyl returns claws-mail to normal behaviour. All other plugins continue to function normally.

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FreeBSD_amd64_11-Current_RadeonKMS