Error in Backend venue saving: Call to a member function format() on bool

[jojo12]

in backend, when opening existing venue and saving it, I get error:

Call to a member function format() on bool 1	()	JROOT/libraries/src/Form/Field/CalendarField.php:400
2	Joomla\CMS\Form\Field\CalendarField->filter()	JROOT/libraries/src/Form/Form.php:1047
3	Joomla\CMS\Form\Form->filter()	JROOT/libraries/src/Form/Form.php:991
4	Joomla\CMS\Form\Form->process()	JROOT/libraries/src/MVC/Model/FormModel.php:219
5	Joomla\CMS\MVC\Model\FormModel->validate()	JROOT/libraries/src/MVC/Controller/FormController.php:636
6	Joomla\CMS\MVC\Controller\FormController->save()	JROOT/libraries/src/MVC/Controller/BaseController.php:730
7	Joomla\CMS\MVC\Controller\BaseController->execute()	JROOT/administrator/components/com_jem/jem.php:54
8	require_once()	JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:71
9	Joomla\CMS\Dispatcher\LegacyComponentDispatcher::Joomla\CMS\Dispatcher{closure}()	JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:73
10	Joomla\CMS\Dispatcher\LegacyComponentDispatcher->dispatch()	JROOT/libraries/src/Component/ComponentHelper.php:361
11	Joomla\CMS\Component\ComponentHelper::renderComponent()	JROOT/libraries/src/Application/AdministratorApplication.php:150
12	Joomla\CMS\Application\AdministratorApplication->dispatch()	JROOT/libraries/src/Application/AdministratorApplication.php:195
13	Joomla\CMS\Application\AdministratorApplication->doExecute()	JROOT/libraries/src/Application/CMSApplication.php:306
14	Joomla\CMS\Application\CMSApplication->execute()	JROOT/administrator/includes/app.php:58
15	require_once()	JROOT/administrator/index.php:32

[jojo12]

Solution like #1713

               format="Y-m-d H:i:s"
               translateformat="false"
               filterformat="Y-m-d H:i:s"

[mckillo]

I can't simulate it, I can edit and save venues in back without any error. I'm work with JEM-4.2.2-dev branch. Check that the xml file is updated.

[jojo12]

Remember, this is the same problem with event.xml and it is only with german ( non english language)

[mckillo]

Here you are, test it (see commit above)

[mckillo]

Tell me if it works in German language.

[jojo12]

yes, thanks!

[mckillo]

I have updated the commit. I tested with spanish language (backend), it works.

[jojo12]

Only question: does it need the filterformat?