TYPO3 Core

• Website with Default Language and English Language
• Content Element With one Field of type INLINE

1. Insert new CE

1. Create Inline item A
2. Create Inline item B
3. Create Inline item C
4. Save
5. Translate CE to EN
6. Switch back to Default
7. Create Inline item D
8. Save
9. Switch to EN

Now you have this:

and

Now lets produce the BUG:

Change the sorting in EN:

And Save the changes.

Now it looks like this - this will blow your mind (please scroll down only if you can stand it):

"Item D" from Default-Language magically appears in the translation AND disappears in Default Language!

And for the Default CE it of course vanished:

Short: DataHandler changes the "parent" to the translated CE.

Now, I have investigated a little on this.

It is a pure JavaScript Bug (puh - it releaves me a little).

Before you change the sorting, the hidden info looks like:

Once you hit the sorting-buttons, it changes to:

The UID of "Item D" (sys_language_uid=0) appears in the list.
This must not happen. "Item D" was not translated. The UID is from "Item D" with sys_language_uid=0.
Now this explains, why the datahandler re-attaches the parents.

Dear JS Ninjas - please have a look. Thanks for reading and looking at my beautiful screenshots.