TYPO3 Core

TYPO3 CMS 9.x composer latest master

I use tt_content.image in a custom CE and set 'allowLanguageSynchronization' => true by columnsOverrides:

'columnsOverrides' => [
    'image' => [
        'config' => [
            'behaviour' => [
                'allowLanguageSynchronization' => true,
            ],
...

This leads to:

Error: Call to a member function isCustomState() on null
in ...typo3/sysext/backend/Classes/Form/FieldWizard/LocalizationStateSelector.php line 96

https://github.com/TYPO3/TYPO3.CMS/blob/master/typo3/sysext/backend/Classes/Form/FieldWizard/LocalizationStateSelector.php#L72 should initialize $localizationState but this fails for field tt_content.image as State::getFieldNames() does not handle columnsOverrides but simply checks if $GLOBALS['TCA']['tt_content']['columns']['image']['config']['behaviour']['allowLanguageSynchronization'] is set.

Must have: LocalizationStateSelector should properly handle the errors if $localizationState is no State object

Could Have: LocalizationStateSelector could also handle fields using columnsOverrides.

Workaround: Set $GLOBALS['TCA']['tt_content']['columns']['image']['config']['behaviour']['allowLanguageSynchronization'] instead of using columnsOverrides.