Steps to reproduce:

1. Open File > Build Profiles

2. Create a new WebGL build profile and add player settings to it

3. Change Texture Compression Format under Other Settings > Rendering

Actual results: Note that when the texture compression format is changed for the non-active build profile it also changes the value globally in Project Settings. If the texture compression format is changed in project settings the profile value gets changed as well.

Expected results:  Project settings' player settings shouldn't change the custom build profile texture compression format value and vice-versa.