AutoComplete Box shows URL of Avatar instead of actual Avatar
When entering a co-author, you get autocomplete results to choose from that have their ID, slug, name ... and then it gives the URL path to their avatar (either a local image file for a Guest Author, or a gravatar.com address for other users).
I'm assuming the intent here is to actually DISPLAY the image, as the chance of showing the URL of an image file being helpful is incredibly low.

Thanks for flagging this!
Looking at older versions of CAP, the intent is to not have an avatar URL come up in the results. But I agree, the URL should not be shown.
This was introduced in #621. After looking into this a bit further, we'd need to find a different way to have the data flow into JS (which may require refactoring).
I looked into this, while the fix seems obvious at first, it's made more complicated by the underlining that the jQuery Suggest library does in the case where the file name includes the search term - the result in that case would be something like <img src="https://example.com/wp-content/uploads/<span>gue</span>st-image.jpg" /> which then produces a broken image.