**System Information**
win 7
**Blender Version**
2.75 RC2
**Short description of error**
When I make a proxy of linked group, and I have a curve hooked to bones into this group, blender loose the connection.
I can make it reconnect if :
- I open the file with old dependency graph
- if I "make duplicate real" to break my group
**Exact steps for others to reproduce the error**
Just open scene.blend and play animation.
{F196579}