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Remove any reference to not existing forms in FormBuilderInterface::submitForm() documentation [#1650198] | Drupal.org
Form] Using multiple Entity Form Types on the same underlying entity in one shared parent Form Type fires only one database request · Issue #6551 · symfony/symfony · GitHub
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custom form type named SearchType adds additional field · Issue #16953 · symfony/symfony-docs · GitHub
![event listener - Expected type 'Symfony\Component\Form\FormInterface'. Found 'null' - Stack Overflow event listener - Expected type 'Symfony\Component\Form\FormInterface'. Found 'null' - Stack Overflow](https://i.stack.imgur.com/23uSF.png)
event listener - Expected type 'Symfony\Component\Form\FormInterface'. Found 'null' - Stack Overflow
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