TYPO3 Core

Upgrading from TYPO3 4.4.4 results in flexform input fields being displayed empty. The hidden REAL input field does have its value however, as viewed in the source or wherever the value has an effect. The values really are stored, they're just not being displayed in the flexform after saving. At the same time, onchange=reload no longer works.

A quick debug reveals a JavaScript error to be the culprit.

typo3/jsfunc.tbe_editor.js received the following addition since 4.4.4, on line 198:

// Check if we are within a deleted inline element
                var testNode = $(form.parentNode);
                while(testNode) {
                    if (testNode.hasClassName && testNode.hasClassName('inlineIsDeletedRecord')) {
                        return result;
                    }
                    testNode = $(testNode.parentNode);
                }

Because form is sometimes null, the newly added code causes the script to halt in a lot of flexform configurations. So among other things, typo3form.fieldSet() will not be applied.

SOLUTION: =========
Below the newly added code we find the following check:

if (form) {

The issue is resolved by including the newly added code BELOW this line rather than ABOVE it.
(issue imported from #M16788)