I have created a new content type which inherits all columns from the default 'Task' content type. I changed the 'Assigned To' column in this new content type to be required. I created a new list where this is the only content type in it.
Unfortunately Quick Edit in this list does not respect this setting and so I'm able to create a new item without entering the required information. When using the 'EditForm.aspx' way everything is working as expected.
Am I missing something or is this some kind of bug related to the quick edit function?