segfault for invalid/malformed bookmark(s)

[roughnecks]

Hello, I would like to report a segmentation fault when there is a "malformed" bookmark in account.

                 <item xmlns="http://jabber.org/protocol/pubsub" id="">
                   <conference autojoin="" name="Symbol(lit-nothing)" xmlns="urn:xmpp:bookmarks:1" />
           </item>

Not sure how the bookmark got there, but most likely upon leaving a groupchat from Movim. I don't have any other info.