System Information
Win7/64, nvidia GTX 750 Ti

Blender Version
Broken: 2.74 official

Short description of error
If you delete an object from the scene, then select an action within the action editor, it tries to assign the action to the current object, but as there is no current object, Blender quits.

Exact steps for others to reproduce the error
Open the attached file. In the action editor, select the one existing action. Blender quits.