Merged PR #2814 is causing trouble with the MageWorx Advanced Product Options extension

[ADDISON74]

A Happy New Year! Good health and happiness to everyone in 2023!

This great extension (still available but unsupported) has a feature to create templates for custom options. Specifically, in a grid page in the Backend called "Mage Options Templates" there is the [Add Options Template] button, see the screenshot bellow

Once I press the button, the browser window loads empty and I get the following error in the exception.log file

2023-01-01T12:52:33+00:00 ERR (3): 
TypeError: Mage_Adminhtml_Block_Widget_Grid_Massaction_Abstract::isConfirmMassAction(): Argument #1 ($itemId) must be of type string, null given, called in /var/www/html/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php on line 113 and defined in /var/www/html/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php:369
Stack trace:
#0 /var/www/html/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php(113): Mage_Adminhtml_Block_Widget_Grid_Massaction_Abstract->isConfirmMassAction(NULL)
#1 /var/www/html/app/code/community/MageWorx/CustomOptions/Block/Adminhtml/Options/Edit/Tab/Product.php(212): Mage_Adminhtml_Block_Widget_Grid_Massaction_Abstract->addItem(NULL, Array)
#2 /var/www/html/app/code/core/Mage/Adminhtml/Block/Widget/Grid.php(650): MageWorx_CustomOptions_Block_Adminhtml_Options_Edit_Tab_Product->_prepareMassaction()
#3 /var/www/html/app/code/core/Mage/Adminhtml/Block/Widget/Grid.php(707): Mage_Adminhtml_Block_Widget_Grid->_prepareMassactionBlock()
#4 /var/www/html/app/code/core/Mage/Adminhtml/Block/Widget/Grid.php(719): Mage_Adminhtml_Block_Widget_Grid->_prepareGrid()
#5 /var/www/html/app/code/core/Mage/Core/Block/Abstract.php(931): Mage_Adminhtml_Block_Widget_Grid->_beforeToHtml()
#6 /var/www/html/app/code/community/MageWorx/CustomOptions/Block/Adminhtml/Options/Edit/Tabs.php(39): Mage_Core_Block_Abstract->toHtml()
#7 /var/www/html/app/code/core/Mage/Core/Block/Abstract.php(931): MageWorx_CustomOptions_Block_Adminhtml_Options_Edit_Tabs->_beforeToHtml()
#8 /var/www/html/app/code/core/Mage/Core/Block/Text/List.php(42): Mage_Core_Block_Abstract->toHtml()
#9 /var/www/html/app/code/core/Mage/Core/Block/Abstract.php(932): Mage_Core_Block_Text_List->_toHtml()
#10 /var/www/html/app/code/core/Mage/Core/Block/Abstract.php(650): Mage_Core_Block_Abstract->toHtml()
#11 /var/www/html/app/code/core/Mage/Core/Block/Abstract.php(594): Mage_Core_Block_Abstract->_getChildHtml('left', true)
#12 /var/www/html/app/design/adminhtml/default/default/template/page.phtml(53): Mage_Core_Block_Abstract->getChildHtml('left')
#13 /var/www/html/app/code/core/Mage/Core/Block/Template.php(257): include('/var/www/html/a...')
#14 /var/www/html/app/code/core/Mage/Core/Block/Template.php(291): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#15 /var/www/html/app/code/core/Mage/Core/Block/Template.php(304): Mage_Core_Block_Template->renderView()
#16 /var/www/html/app/code/core/Mage/Adminhtml/Block/Template.php(74): Mage_Core_Block_Template->_toHtml()
#17 /var/www/html/app/code/core/Mage/Core/Block/Abstract.php(932): Mage_Adminhtml_Block_Template->_toHtml()
#18 /var/www/html/app/code/core/Mage/Core/Model/Layout.php(580): Mage_Core_Block_Abstract->toHtml()
#19 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Action.php(397): Mage_Core_Model_Layout->getOutput()
#20 /var/www/html/app/code/community/MageWorx/CustomOptions/controllers/Adminhtml/Mageworx/Customoptions/OptionsController.php(60): Mage_Core_Controller_Varien_Action->renderLayout()
#21 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Action.php(428): MageWorx_CustomOptions_Adminhtml_Mageworx_Customoptions_OptionsController->editAction()
#22 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(262): Mage_Core_Controller_Varien_Action->dispatch('edit')
#23 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Front.php(188): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#24 /var/www/html/app/code/core/Mage/Core/Model/App.php(371): Mage_Core_Controller_Varien_Front->dispatch()
#25 /var/www/html/app/Mage.php(745): Mage_Core_Model_App->run(Array)
#26 /var/www/html/index.php(71): Mage::run('', 'store')
#27 {main}

I am using DDEV so it was easy to switch PHP versions, from 7.0 (skipping the OM condition of using > 7.3) to 8.2. The error did not disappeared. Then I used XDebug and I didn't get any error in the extension files. The error above is written in the exception.log file when the running passes the if statement in the file /app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php, between lines 113 - 115, introduced in PR #2814. If I comment it the page loads as expected, there are no more errors in the log files.

I went further and I replaced in the same file in line 369 string $itemId with $itemId in this method

    protected function isConfirmMassAction(string $itemId): bool
    {
        return in_array($itemId, static::$needsConfirm);
    }

the page loads in browser without any issues. Most likely, the change does not take into account the situation in which the argument could have a null value?

TypeError: Mage_Adminhtml_Block_Widget_Grid_Massaction_Abstract::isConfirmMassAction(): Argument #1 ($itemId) must be of type string, null given, called in /var/www/html/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php on line 113 and defined in /var/www/html/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Massaction/Abstract.php:369

[sreichel]

Most likely, the change does not take into account the situation in which the argument could have a null value?

Did not expect that someone passes null as identifier (that is later used as array-key).

@mageworx is this single-line fix possible? Just pass a string instead null?