Created attachment 144829 [details]
Sample presentation to demonstrate re-ordering failure.

Moving a rolled-up set of text-animations down to be the last animation for a slide causes the order of the animations inside the rolled-up set to be reversed. 

Attached presentation is useful for demonstrating the incorrect reordering.

Steps to reproduce:
1. Have 1st and 2nd level text in a text box; add it as a custom animation.
(Will have 1st level appear on click, 2nd level appears with it).
2. Have another element (like a shape); add it as a custom animation (appear).
3. In the Animations side-bar, roll-up the 2 text animations (so they show as one line).
4. Select the rolled-up text animations and click the 'Move Down' button to move it to be the last animation on the slide.

Current Behaviour:
- Rolled-up text animations are moved down
- Order of animations in rolled-up set is reversed (the bug!)

Expected Behaviour:
Rolled-up text animations are moved down and the animations inside the rolled-up group are not reordered.


Tested under Windows and Linux. Present in 6.1.0.3 (x64)