Cannot build up collection.

Please investigate. This will delay your other work.

1. Go to this collection. http://www.curriki.org/xwiki/bin/view/Coll_Group_CLRN-OpenSourceEarthScienceCourse/EarthSystemsAnEarthScienceCourse?bc=
2. Select to Build-Up

Bug
I get the Server timed out error.

I occassionally get the message that it was successfully added behind the timed out error message. That's a new one for me.

Please check to see if this is an AddPath error. If not, please pass along to Ludovic.

Notes on what I tried.
1. I was able to build up the collection manually using the Object Editor
2. I tested on both IE and FF and the problem occurs
3. I removed formatted characters that I thought might cause XWiki issues
4. I tried editing and resaving the collection
5. I get the following errors in FireBug

• Badly formed JSON string: '' [Break on this error] throw new SyntaxError('Badly formed JSON string: ' + this.inspect());\nprototype.js (line 507)
• Permission denied to access property 'dom' from a non-chrome context
  [Break on this error] (function() {var D=Ext.lib.Dom;var E=Ext....e El.cache;delete El._flyweights})})();\next-all.js (line 14)
  - 10Math.uuid=(function(){var a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".spli......
  - Cannot add subasset Object tId=5 status=-1 statusText=transaction aborted
  - Permission denied to access property 'dom' from a non-chrome context [Break on this error] (function(){var D=Ext.lib.Dom;var E=Ext....e El.cache;delete El._flyweights}

  )})();\n