Environment:
Unity 2018.1.0a5
MacOS 10.12

What happened
"Screen position out of view frustum" error while expanding Sprite.

Steps to Reproduce
1. Create a new project
2. Import any Sprite
3. In "Hierarchy" > "Create" > "2D Sprite"
4. Assign sprite in Sprite Renderer component.
5. Expand Sprite using rect tool
6. When Sprite goes beyond Screen in Game view, error will occur on Console

Error Details:
Assertion failed: Screen position out of view frustum (screen pos 203.328491, 366.000000) (Camera rect 0 366 872 0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Frequency: Always

Reproduciable on :
Unity 2018.3.0a6, 2017.3.0b9 , Unity 2017.3.0b7, Unity 2017.3.0b3

Not Reproducible on :
Unity 2017.1.0f3 , Unity 2017.2.0f3

Note: Refer attached video.

License type: Pro