<del>Strikethrough HTML</del> leads to crash about nio HOT 2 CLOSED

I don't think this is due to the strikethrough, it also happens w/ other input. It is always useful to look at what the crash is ;-):

Thread 1: Simultaneous accesses to 0x107200e10, but modification requires exclusive access
And the concurrent access started in LayoutComputer.EngineDelegate.sizeThatsFits (presumably the SwiftUI layout).

It seems to be a weird interaction between WebKit (which is used for HTML parsing in NSAttributedString and seems to spin up a funky nested runloop?) and SwiftUI.

Actually it is probably "more complex HTML" which is piped through WebKit (maybe a " or <!-- also triggers this. I tried to replicate it in a test case, which doesn't raise. Because the SwiftUI is missing.

The case we are currently seeing is a message which contains "<name> changed". CommonMarkAttributedString tries to pipe this through NSAttributedString(...html) which produces the issue.
Which I suppose brings us full circle why we even parse the stuff as Markdown ;-) This <name> is verbatim content.

from nio.

Fixed with #272.

from nio.