Keyboard shortcut stickiness

I like to make keyboard shortcuts consistent across the whole suite of programs, as much as I can. One that I got used to in Illustrator was deselect being command+shift+A. In the newer versions of photoshop, I've had to remove this from Camera Raw Filter, and resave my keyboard shortcut set. Well, things go fine for a while (days, weeks, multiple restarts of the program/computer, it just isn't always the same amount of time) but eventually, that keyboard shortcut is assigned to both deselect and camera raw filter, and I have to go in and remove it once again.

I don't know why, or how, but it has happened to me many times.