If you search for "sebastiao s" on the portal, there are two results. The first result appears correctly, but the second result copies the page image and wikidata description of the first result. At first I thought the second result was a redirect being mistakenly included, but it is in fact a totally separate article that doesn't have this image or description anywhere in it.
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The fix for this was merged on April 3: https://gerrit.wikimedia.org/r/#/c/346032/
We hope to have it in production soon.