How to reproduce:
1. Open user-submitted project (CopyFromComponentDataArrayBug.zip)
2. Open the SampleScene
3. Enter Play Mode and check the Console window

Expected result: entity values match expected values(1/1/1 and 1/1/1) and array values match expected values(1/1/1 and 1/1/1)
Actual result: entity values don't match expected values(1/1/1 and 0/0/0) and array values don't match expected values(1/1/1 and 0/0/0)

Reproducible with: 2019.3.14f1, 2020.1.0b9, 2020.2.0a11
Could not test with: 2017.4.40f1, 2018.4.23f1(regressed package version unavailable)

Reproducible with package versions: preview.6 - 0.10.0
Not reproducible with package versions: preview.15 - 0.9.1