I have reproduced this problem on a 5.3 build, when my content was set with the firefox's extension: it's all text. In the exported XAR, the content has every line suffixed by {{ 
 }}
Here a bit of it: {code} <content>{{velocity}}
 {{html clean="false" wiki="true"}}
 #set ($WikiManager = $services.wiki)
 {code} |
|