Reproduction steps:
1. Open my attached project ("case_878619-repro")
2. Open the "test" scene
3. Select the "Toggle 1" game object in the hierarchy
4. Change the "isOn" property under the Toggle component

- Notice how the scene view doesn't update the change -

5. Enter Play mode
6. Exit Play mode

Result: the toggle was updated after entering/exiting Play mode

Expected: toggle is updated every time it's checked/unchecked in the inspector

Reproducible on: 5.4.4p1, 5.5.1p2, 5.6.0b7