1. Create button in a scene

Example 1:
2. in inspector for anchor min, set value that is higher than anchor max.
3. result is that anchors are set accordingly in scene and the issue isn't corrected until you click the anchors in the scene view.

Example 2:
4. In the inspector for the button, set value for pivot so that it's outside the rect transform
5. result:
https://dl.dropboxusercontent.com/u/68583266/Allowed..JPG
which won't be corrected until you click the pivot point in sceneview