2020-11-11-allow-empty-snippet-values.md

title	issue
Allow empty snippet values	NEXT-7161

Core

• Added \Shopware\Core\Framework\DataAbstractionLayer\Field\Flag\AllowEmptyString flag, to indicate that an empty string is a valid value for the flagged field and that it should not be considered as null.
• Changed the value field of \Shopware\Core\System\Snippet\SnippetDefinition to allow empty strings.