At admin/config/content/formats/manage/basic_html and other Text Formats, we have another regression caused by #2297711: Fix HTML escaping due to Twig autoescape:
Committed 032757a and pushed to 8.x. Thanks!
@@ -5,8 +5,8 @@
Unrelated changes tut tut :)
Issue #2309175 by Wim Leers: Fixed HTML double-escaping in Text Editor...
Automatically closed - issue fixed for 2 weeks with no activity.
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