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Benjamin Neff authored
There are a few old oEmbed caches which have the title saved in binary (because they contain Chinese characters). This fails with `ActionView::Template::Error ("å" from ASCII-8BIT to UTF-8)`. Since I found only very old OEmbed caches with this problem (newest from 2012), I think we can just remove these. When I create a new oEmbed cache for the same URL it creates it without `!binary`. closes #7620