**System Information**
Xubuntu 14.04
nVidia GTX 550 Ti, Treiberversion 331.38
**Blender Version**
Broken: 2.70 06a05e4 (Blender.org Buildbot, Tue May 27 2014)
Worked: 2.7a
**Short description of error**
changing Keyframe Extrapolation don`t refresh F-Curves
**Exact steps for others to reproduce the error**
In the attached file you`ll find a simple animation in the F-Curve Editor. The Keys of the Curve are already selected.
Press Shift + E and choose "Linear Extrapolation". -> Nothing is happen.
If you now grab one or more Key in the F-Curve, the Extrapolation Mode will change.
Same Problem, if you want switch back to Constant Extrapolation.
{F91655}