TYPO3 Core

This is still reproducible on TYPO3 13.1.0-dev (latest main)

Prerequisites¶

• TYPO3 13.1.0-dev
• two forms saved in the Forms module, "form 1" and "form 2"

Steps to reproduce¶

1. Log in TYPO3 as admin
2. Go to form module, open "form 1 " for editing, add something e.g. an input field
3. open a new tab on your browser on the same TYPO3 backend and the same user
4. Go to form module, open "form 2 " for editing, add something e.g. an input field
5. Save "form 2"
6. go to the tab where you've opened "Form 1" and press save button

Result¶

The backend crashes with the error:

(1/2) #1297759968 TYPO3\CMS\Extbase\Property\Exception
Exception while property mapping at property path "": Unauthorized modification of "prototype name" or "identifier".

            return $result;
        } catch (TargetNotFoundException $e) {
            throw $e;
        } catch (\Exception $e) {
            throw new Exception('Exception while property mapping at property path "' . implode('.', $currentPropertyPath) . '": ' . $e->getMessage(), 1297759968, $e);
        }
    }

    /**