You make a good point, but just because you went there doesn't always mean you accepted it. If an employee hangs around a while after an adverse change while trying to "adjust their grievance," then you can negate the presumption that you accepted it.
Now, let's work on your wording. Did you chose to go to that department or did they say, "this is all we have. Take it or leave it."? or maybe "this is what's open. Take your pick."? Neither option suggests that you voluntarily made the move. When you use the word "chose," it can come across that you were just dying to get bumped from your job and just couldn't wait to get yelled at by customers on the phone, and I just don't believe that is what you mean.
Did you really want to make this your new career, or was it to buy some time to try to get your former duties and title back in another area of the company by "adjusting your grievance"?

