Version 2.73 (Linux 64-bit)
This bug requires no example file to reproduce.
How to reproduce:
- Open Blender, go to the Scene Properties, and add a Keying Set.
- Examine the "Keyframing Settings" for the keying set and notice what happens when you click them.
Turning on one option disables the others, which might lead a user to think that these three miscellaneous options are related, but they are not. Enabling more than one option in this panel requires the user to hold down shift while clicking. This makes no sense and no other area in the properties window behaves like this!
I think this design flaw counts as a bug. These options should not be grouped this way, and ought to be in the form of checkboxes instead.