[O] Org Contacts, Gnus and Yasnippet Not Playing Nicely

[Ian Barton]

I am trying to set up Org Contacts and gnus. Org Contacts suggests that 
pressing + <Tab> in the To: field in a message buffer should offer a 
list of tags from my contacts file. However, I just get a Tab.

I suspect that Yasnippet is interfering, as entering the abbreviation 
for any of my snippets and pressing Tab auto-completes the snippet. Does 
anyone have a tip for making Yasnippets, gnus and org-contacts play 
nicely together?

Ian.