TYPO3 Core

Given is a record in an own extension with a slug field.

The TCA configuration is as follows:

'path_segment' => [
        'label' => 'Path segment',
        'exclude' => true,
        'config' => [
            'type' => 'slug',
            'generatorOptions' => [
                'fields' => ['title'],
                'fieldSeparator' => '/',
                'prefixParentPageSlug' => false,
            ],
            'fallbackCharacter' => '-',
            'eval' => 'uniqueInPid',
        ],
    ],

Clicking on the button for recalculating the slug throws an exception (see attachment).

The same exception occurs when saving the record. So it's not possible anymore to save a record!

I am using a multi-lingual single-page tree (I don't know if this is relevant).

I can reproduce the error in the news extension.

It seems to me that this is a regression related to the fix for bug #86195.