TYPO3 Core

Preconditions:
The TYPO3 10.x installation is set up as multilang installation.
The source page uses an indent container (gridelements) with at least one content element.
The page and its content is translated with "Free Mode".

Steps to reproduce the error:
The source page is copied and pasted. Let's call the new page target page. While looking on the database all translated records within the indent container have set l10n_source to the UIDs of the translated Content Elements of the source page.

That is wrong. Expected behaviour would be the l10n_source set to the uids of the corresponding CEs on the target page.

I think, i've found a solution:

In DataHandling/DataHandler func copySpecificPage the order of processing elements is done reverse.
So that means that on the target page all translated elements are created before the original elements are present.
Thats why it is impossible to set the correct l10n_source at that time.

I've switched to ASC ordering and it looks good.

I'll try to push a patch of my modification.

BW
Alex