Unable to Edit Curve Names between 2 Different Animsets (if name of curve is the same)

If you create 3 curves in AnimSequence A and name them 1, 2 and 3 respectively, then create 3 curves in AnimSequence B and name them 4,5 and 6 respectively... In AnimSequence B you will not be able to highlight the names 4, 5 and 6 and change them to 1, 2, or 3.

However, you can create completely new tracks with the names 1,2, and 3 in AnimSequence B.

Comparing between two animations: AnimSequenceA and AnimSequenceB

1. create 3 curves in AnimSequence A
2. name them 1, 2 and 3 respectively
3. create 3 curves in AnimSequence B
4. name them 4,5 and 6 respectively
5. In AnimSequence B, Highlight Curve name "4" and type 1, 2, or 3 and press enter
6. Curve name will not change

Expected: Curve name to change to newly entered value

Animation - Cannot Rename Curve