How to reproduce:
1. Open the attached project ("case_1189566.zip")
2. Load the "SampleScene"
3. Enter a Play Mode and open a Game view

Expected result: the box and the sphere are at the same location
Actual result: the box and the sphere are not at the same location

Reproducible with:
Entity 0.1.1: 2019.2.8f1, 2019.3.0b6, 2020.1.0a8
Entity 0.1.0: 2019.2.8f1, 2019.3.0b6, 2020.1.0a8

Could not test with 2017.4.32f1 due to a lack of Entities package, 2018.4.10f1 due to errors in the project, GameObjectConversionSettings class was introduced in 0.1.0 version which causes errors when testing with earlier package versions, 2019.3.0a1 - 2019.3.0a9 due to multiple library errors

Note: SetComponentData is applied to both parent and child Entities when the Sphere Collider in the child GameObject is disabled or removed.