Created attachment 178590 [details]
Animation pane with all animations of the same object selected.

Version: 7.3.0.3 (x64) / LibreOffice Community
Build ID: 0f246aa12d0eee4a0f7adcefbf7c878fc2238db3
CPU threads: 8; OS: Windows 10.0 Build 19044; UI render: Skia/Raster; VCL: win
Calc: CL

If, when I'm editing an Impress presentation, I open the animation pane and select an animation for editing, Impress will also select every other animation related to the same object. This makes the process incredibly frustrating, as I must manually deselect them with ctrl+click every time to prevent edits from applying to all animations.

Steps to reproduce:

1. Open a blank Impress presentation;
2. Insert two objects, eg shapes or images.
3. Add an animation to each, e.g. an entrance animation.
4. As you select an object to add a second animation, the first animation in the Animation pane is selected. Once it's added, it and a random other animation is selected. Any edits applied will be to both. 
5. Select the second animation in the Animation Pane. The first animation will automatically selected, and any edits or deletions will apply to both.

This makes multiple animations applied to the same object, such as entering and exiting the slide in sequence, incredibly difficult and time consuming to create.