JS error when loading stream via ajax.

chrome_trace

Uncaught TypeError: Cannot read property 'diaspora_id' of undefined
app.views.Comment.app.views.Content.extend.postOwnermain.js:75
app.views.Comment.app.views.Content.extend.canRemovemain.js:75
app.views.Comment.app.views.Content.extend.presentermain.js:75
app.views.Base.Backbone.View.extend.renderTemplatemain.js:75
app.views.Base.Backbone.View.extend.rendermain.js:75
app.views.CommentStream.app.views.Base.extend.appendCommentmain.js:75
G.each.G.forEachmain.js:44
x.each.b.Collection.(anonymous function)main.js:73
app.views.CommentStream.app.views.Base.extend.postRenderTemplatemain.js:75
app.views.Base.Backbone.View.extend.renderTemplatemain.js:75
app.views.Base.Backbone.View.extend.rendermain.js:75
(anonymous function)main.js:75
G.each.G.forEachmain.js:44
app.views.Base.Backbone.View.extend.renderSubviewsmain.js:75
app.views.Base.Backbone.View.extend.rendermain.js:75
app.views.Stream.Backbone.View.extend.addPostmain.js:75
b.Events.triggermain.js:73
x.extend._onModelEventmain.js:73
b.Events.triggermain.js:73
x.extend._addmain.js:73
x.extend.addmain.js:73
x.extend.fetch.y.successmain.js:73
f.Callbacks.njquery.min.js:2
f.Callbacks.o.fireWithjquery.min.js:2
wjquery.min.js:4
f.support.ajax.f.ajaxTransport.send.d