-EndLayoutGroup: BeginLayoutGroup must be called first error is thrown on cancelling Save popup while enabling Use incremental GC/Virtual Texturing in Player setting preset asset.
-In 2019.3.15f1 Change stack is empty, did you call BeginChangeCheck first? error is thrown.

Steps to repro:
1. Create a new HDRP template project.
2. Edit > Project Settings > Player.
3. Create its preset.
4. Select preset asset > Enable Virtual Texturing/Use incremental GC.
5. Click on Cancel button.

Actual Result:
EndLayoutGroup: BeginLayoutGroup error is thrown in the console.

Expected Result:
No error in the console.

Reproducible in:
2020.2.0a14, 2020.1.b12, 2019.3.15f1.

Working Fine in:
2019.3.014f1.

Environment:
Occurring on Windows 10 & Mac 10.15.

Stack trace:
EndLayoutGroup: BeginLayoutGroup must be called first.
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

Change stack is empty, did you call BeginChangeCheck first?
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)