Doesn't seem to work with OAuth 2?

[Gagravarr]

As far as I can tell, the underlying share-oauth library supports both OAuth 1 and OAuth 2, on newer versions of Alfresco. However, when I click the Connect to Yammer button, it takes me to https://www.yammer.com/oauth/authorize?oauth_token=XXXXXXX which gives a big warning about OAuth 1 having been disabled. That URL also seems to be different to the one that the Yammer OAuth 2 docs refer to

It therefore seems that the Yammer Dashlet doesn't work with OAuth 1, and hence no longer works at all with Yammer (which now requires OAuth 2). Is this the case? Or did we miss a setup step to pick OAuth 2 instead?