Paragraphs: fix error if content/none is empty
Paragraphs: fix error if content/none is empty

yacon/koala-framework,yacon/koala-framework,kaufmo/koala-framework,nsams/koala-framework,nsams/koala-framework,koala-framework/koala-framework,yacon/koala-framework,kaufmo/koala-framework,koala-framework/koala-framework,nsams/koala-framework,kaufmo/koala-framework