If you have multiviews enabled on Apache Drupal doesn't always work as expected. For example, if you are logged in as user 1 and go to example.com/update it will serve update.php and an exception will be produced. This can cause issues with clean-urls - see https://www.drupal.org/docs/7/configuring-clean-urls/enable-clean-urls → .
Add warning to system_requirements() to test if multiviews is enabled.
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Postponed: needs info
11.0 🔥
system.module
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