Steps to reproduce:
1. Open empty project
2. Go to player settings and click the Preset icon between the gear and Help icons at the top of the window
3. Save current setup as a preset
4. Find the preset asset in Assets and select it
5. For simplicity, dock the Inspector and Project settings windows so that they are both visible side by side
6. In the inspector, select a platform (iOS or Android or any other)
7. Move your mouse to the project settings window
8. Project settings platform is selected to the same one that was selected in step 6

Expected: Selecting preset options should not affect the project settings window in any way unless at the moment the preset is applied
Actual: Selecting a platform in one asset/window selects the platform in the other as well

Reproduced on 2019.3.2f1, 2020.1.0b12, 2020.2.0a15