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Bug #94817

closed

Cannot check an unchecked null-value checkbox for fields in the backend

Added by Robert Kärner over 3 years ago. Updated about 3 years ago.

Status:
Closed
Priority:
Should have
Assignee:
-
Category:
FormEngine aka TCEforms
Target version:
11.4
Start date:
2021-08-11
Due date:
% Done:

100%

Estimated time:
TYPO3 Version:
11
PHP Version:
Tags:
TCA, null, checkbox, eval
Complexity:
Is Regression:
Sprint Focus:

Description

Reproduce

  • Configure a simple text input field ('type' => 'input') in TCA to allow null values ('eval' => 'null')

Result

A checkbox "Set value" to allow null values is shown in the backend as expected.
However, once you uncheck this checkbox, it becomes permanently disabled and you cannot re-check it.

Expected behaviour

The unchecked checkbox should be clickable so that you can check it again.
This worked fine in Typo3 10, and stopped working with Typo3 11.

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