Question EditorGUILayout.ColorField inside a BeginScrollView causes GUI Error!

I have a simple EditorWindow which has the GUI elements drawn inside an EditorGUILayout.BeginScrollView, all works fine but if you click a EditorGUILayout.ColorField control the console gets the error:

Code (CSharp):

1. GUI Error: You are pushing more GUIClips than you are popping. Make sure they are balanced.
2. UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

Is there a way to stop this from happening?

So this does not give an error:

Code (CSharp):

1.             EditorGUILayout.ColorField("Tint", layer.tint);
2.             scroll = EditorGUILayout.BeginScrollView(scroll);
3.             EditorGUILayout.EndScrollView();

But this does:

Code (CSharp):

1.             scroll = EditorGUILayout.BeginScrollView(scroll);
2.             EditorGUILayout.ColorField("Tint", layer.tint);
3.             EditorGUILayout.EndScrollView();
4.