Rendering fails if no text field.

[WardCunningham]

wiki-client/lib/paragraph.coffee

Line 16 in 3e0a1dd

for text in item.text.split /\n\n+/

[WardCunningham]

This would be expected to render as "help" but instead killed the server when going through its rendering as html. Duke reported this on riot.
https://riot.im/app/#/room/#fedwiki:matrix.org/$1541857047577219XxttO:matrix.org