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Unviewable question with empty suggested edit

There is currently a [suggested edit in the Q&A category](https://writing.codidact.com/posts/suggested-edit/1488) that appears to have no change (left and right sides of the diff are identical), and the post is not viewable (at least to me). Clicking on "Return to post" gives me a 500 server error page.

I don't know the underlying reason (usually a deleted post would show to me as a 404 not found error page rather than a 500). Other posts on Writing are viewable to me, so it does not seem to be a general server problem. Removing the answer part of the URL to view [just the question](https://writing.codidact.com/posts/20382) also gives me a 500 error.

The question shows up for me using Codidact's search box (I searched for "copy", having discovered the question title is "Who owns the copy if a copywriter provides copy as a paid service?" by entering the URL into a search engine), but clicking on it still gives a 500 error.

The question is also present for me on the first page of the question list, but again clicking gives me a 500 error.