1.2.3

What's Changed

• Fix for null blocks by @dpfaffenbauer in #486
• Protecting runtime 'datahub_context' by @kingjia90 in #479
• removes layout definition when saving the schema configuration by @kingjia90 in #477

Full Changelog: v1.2.2...v1.2.3

https://github.com/pimcore/data-hub/milestone/26?closed=1