I have tested this item ✅ successfully on 5c9b378

Tested before applying this patch there are four "PHP Warning" messages from the web server from running the two tests:

scripts/test 53 system '{tests/System/integration/api/com_templates/Administrator.cy.js,tests/System/integration/api/com_templates/Site.cy.js}'

After applying this PR with scripts/patch 53 joomla-cms-45052 there is no "PHP Warning" message anymore and the Cypress tests still run successful

@SharkyKZ apart of your "usual" 👎 can you explain a little bit more ?

The warning here comes from mixed data type of $data parameter:

• Usually, $data is an object
• But in some case (for example, when saving item false), Joomla redirect to edit item form and in that case, $data is an array

For the time being, to be safe, you should update code to handle the case $data is an array (see the code from line 415 to 417 to get an idea). Later, we might want to discuss to see if we should update code of loadFormData method to always return object to make it simpler to handle $data

@alikon This issue should be covered by #45077 . Could you please help testing that PR to see if it address the issue you are having here? If Yes, this PR can be closed. Thanks

i've done a test with your #45077 in place with current fresh staging
still got ```

[06-Mar-2025 12:24:27 UTC] PHP Warning: Undefined property: stdClass::$parent in C:\laragon\www\530\administrator\components\com_templates\src\Model\StyleModel.php on line 344
[06-Mar-2025 12:24:27 UTC] PHP Warning: Undefined property: stdClass::$parent in C:\laragon\www\530\administrator\components\com_templates\src\Model\StyleModel.php on line 345
[06-Mar-2025 12:24:27 UTC] PHP Warning: Undefined property: stdClass::$parent in C:\laragon\www\530\administrator\components\com_templates\src\Model\StyleModel.php on line 345

Thanks @alikon. I am not familiar with the test but I will try to read the code to see how it happens and get it sorted.

you don't need to be familiar to the "automatic test" just edit & save atum from backend 😄

you don't need to be familiar to the "automatic test" just edit & save atum from backend 😄

Thanks. I see the reason of the warning. Fixed now, so it would be great if you can take another look :).

sure i'll do it

closing in favour of #45077