Tbx import error: Cannot assign null to property editor_Models_Terminology_TbxObjects_Term::$definition of type string

Attached tbx file import fails with the error: Cannot assign null to property editor_Models_Terminology_TbxObjects_Term::$definition of type string at least on manual-tests instance. However, on my local instance it works ok, so maybe manual instance is not on the latest develop, or there is some other problem, but this is the problem of why translated terms re-import back to their termCollections is not working.