Pull Request for Issue # .

Summary of Changes

This pull request (PR) updates the lists of files and folders to be deleted on update by script.php for the upcoming 4.1.3 release - details see below - and adds file "libraries/src/Form/Rule/CssIdentifierSubstringRule.php" from the 3.10-dev branch.

The "CssIdentifierSubstringRule.php" file has been added due to a security patch with commit 44b7b89 .

In Joomla 4.x this file is not really needed because the same security fix uses the "CssIdentifierRule" from this file https://github.com/joomla/joomla-cms/blob/4.1-dev/libraries/src/Form/Rule/CssIdentifierRule.php , which is more strict.

But it makes sense to keep that file, and so I add it with this PR. It can be used by 3rd party developers to validate form fields for parts of CSS identifiers like we had them in past (J3) in the core with the "CSS class suffix" fields, while the "CssIdentifierRule" only make sense for validating complete CSS identifiers.

In detail following changes are made on the lists of files and folders to be deleted on update by script.php:

• Move file "/administrator/components/com_users/src/Field/PrimaryauthprovidersField.php" from the "$folders" to the "$files" array. It was added by mistake to the "$folders" array with PR #37415 . Possibly my mistake with my code suggestion for that PR.
• Add missing leading slash to file "/libraries/vendor/webmozart/assert/.php_cs" - the missing "/" was my mistake from PR #37458 .

There have not been detected any files or folders to be added to the lists in script.php by my tool.

Testing Instructions

Code review should be enough.

Actual result BEFORE applying this Pull Request

File "libraries/src/Form/Rule/CssIdentifierSubstringRule.php" doesn't exist.

In file "administrator/components/com_admin/script.php":

• File "/administrator/components/com_users/src/Field/PrimaryauthprovidersField.php" is at the end of the "$folders" array in section "// From 4.1.1 to 4.1.2".
• File "libraries/vendor/webmozart/assert/.php_cs" - mind the missing leading "/" - is at the end of the "$files" array in section "// From 4.1.2 to 4.1.3".

Expected result AFTER applying this Pull Request

File "libraries/src/Form/Rule/CssIdentifierSubstringRule.php" exists. It is equal to https://github.com/joomla/joomla-cms/blob/3.10-dev/libraries/src/Form/Rule/CssIdentifierSubstringRule.php except of the changed copyright format at the top and the leading backslash of the "defined" statement.

In file "administrator/components/com_admin/script.php":

• File "/administrator/components/com_users/src/Field/PrimaryauthprovidersField.php" is at the end of the "$files" array in section "// From 4.1.1 to 4.1.2".
• The missing leading "/" has been added to file "/libraries/vendor/webmozart/assert/.php_cs" in section "// From 4.1.2 to 4.1.3".

Documentation Changes Required

None.