We've been getting the following error and it shows up when someone posts an internal link with an apostrophe in the URL. When "Unfurl URL to a rich preview automatically" is checked, we get the error below. When it is unchecked, it will post the text of the URL, but it doesn't automatically link. If I remove the apostrophe manually in the link I'm posting, everything works as it should - no errors and the unfurl works. We shouldn't have to manually remove the apostrophe each time...
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