Pull Request for Issue #25088 .

Summary of Changes

In #22166 we solved com_associations side by side "Bug1" by adding id to $hiddenFields in layouts/joomla/edit/global.php.
This only concerned articles when Show Publishing Options was set to Hide in Articles Options.

As found out in #25088, this creates a duplicate ID.
Example: see source in administrator/index.php?option=com_tags&view=tag&layout=edit
To solve the issue, this PR adds the $hidden_fields directly in the article edit tmpl and takes it off from global.php.

Testing Instructions

Patch a clean install. (This can be done using Patchtester on a nighlty build)
Create a multilingual site by installing 2 languages and using the Multilingual Sample Data module in CPanel.
Set Show Publishing Options to Hide in Articles Options.
Load com_associations and set the filters to Articles and one of the content languages.
Click on the title of one of the articles to make sure the side by side will not loop.
Load administrator/index.php?option=com_tags&view=tag&layout=edit and verify that we have only one jform_id

After patch

All still works fine for side by side in com_associations.
No more duplicate ID