When using "UnityEditor.EditorJsonUtility.FromJsonOverwrite" with a BoxCollider, the Size values of the BoxCollider component get twice as big than they should be. For example, if the size is (1, 2, 3), when calling "UnityEditor.EditorJsonUtility.FromJsonOverwrite" they will become (2, 4, 6), no matter what the values are after calling "UnityEditor.EditorJsonUtility.ToJson"; calling it again will result in (4, 8, 12), and so on.

To reproduce:
1. Open the attached project
2. Open the "Test" scene
3. Select the "GameObject" from the Hierarchy
4. Click "Click To Serialize" checkbox in the Inspector in the "Test" script
5. Click "Click To Deserialize" checkbox in the Inspector in the "Test" script

Desired outcome: The Size values of the BoxCollider component are left unchanged.
Actual result: The Size values of the BoxCollider component appear twice as big than they should be. (view the attached .gif)

Workaround: Adjust Size values by dividing them by 2 after calling the EditorJsonUtility::FromJsonOverwrite

Reproduced with 5.5.2f1, 5.5.3p1, 5.6.0b3, 5.6.0f3, 2017.1.0b1