Validation message while it's not mandatory

[jbreuer]

On the datatype I've allowed blank strings and on the document type the property isn't mandatory, but when I don't enter a single value I still get a validation message.

[jbreuer]

Other properties also aren't saved when the mandatory field isn't filled. Normally it would save the other fields and just not publish them, but after reloading the page the other properties are also empty again.

[jbreuer]

If you remove the first textbox by clicking the minus icon and you save it afterwards it doesn't show the validation error. So maybe don't display the first textbox by default and only the add button?