Description of problem:Telepathy Butterfly Crash's when i start Empathy

aliasing.py:144:_contact_alias_changed:AttributeError: 'Profile' object has no attribute 'infos'

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/butterfly/util/decorator.py", line 87, in async_function
    func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/butterfly/aliasing.py", line 144, in _contact_alias_changed
    alias = contact.infos.get(ContactGeneral.ANNOTATIONS, {}).\
AttributeError: 'Profile' object has no attribute 'infos'

Local variables in innermost frame:
alias: None
self: <butterfly.connection.ButterflyConnection at /org/freedesktop/Telepathy/Connection/butterfly/msn/Rivaled40_40gmail_2ecom at 0x86c356c>
contact: <Profile object at 0x86c9d4c (papyon+profile+Profile at 0x86f98b0)>
handle: <butterfly.handle.ButterflyContactHandle object at 0x870bfcc>


Version-Release number of selected component (if applicable):
the latest one in F15

How reproducible:
always 

Steps to Reproduce:
1.start Empathy
2.
3.
  
Actual results:


Expected results:
no crash's

Additional info: