Operating system and graphics card
Windows 7 64 bit, geforce 760gtx
Broken: (example: 2.69.7 4b206af, see splash screen)
Short description of error
Can't add hotkeys for the unwrap tools in the right click menu
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
Open Blender, switch to edit mode. Press U. You will see the Unwrap menu. Right click at one of the items. You will see the menu item add Shortcut in the sub menu. But the try to assign a hotkey here to one of the items will not work.