Just a minor code fix:
https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Form!FormBase.php... doesn't contain a method "validatePath()", so I guess the inheritDoc is wrong?
It's just a custom helper function?
Check, if my assumption is correct and fix phpdoc.
Needs review
4.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
bluegeek9 → changed the visibility of the branch 8.x-4.x to hidden.
The tests are failing unrelated to this change. The phpDoc is an improvement. FormBase does not provide a validatePath method to inherit the doc from.