GitHub Slack Integration escapes the second <code> block on a line

My company uses the Github Slack integration with GitHub Enterprise authorized as a Slack app.
When I get automatic webhook messages from the app, it is adding the incorrect number of ticks (trying to escape too much).

The message sent from github (in the hook’s logs) looks correct, like this:

You can't change the contents of a `crossorigin` `<iframe>`.

But in Slack, I see this:

(Apologies if this is out of scope. I don’t actually know where to go to report this issue; this was the best place I could find after a good amount of digging.)

Hi @kittsil :wave:

It’s been a while since you reported this. Is this behavior still present?