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Bug
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Resolution: Fixed
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Minor
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4.0.1, 4.1
Change in PHP8.1 (see https://github.com/php/php-src/blob/PHP-8.1/UPGRADING )
htmlspecialchars(), htmlentities(), htmlspecialchars_decode(),
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html_entity_decode() and get_html_translation_table() now use
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ENT_QUOTES | ENT_SUBSTITUTE rather than ENT_COMPAT by default. This means
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that ' is escaped to ' while previously it was left alone.
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One instance of this, which was causing unit test failures in wiki, was reported and fixed in MDL-73435. This issue deals with addressing the other cases - which aren't captured by unit tests and may need to manually discovered on a case by case basis.
