How to reproduce:

1. Open attached project
2. Open scene Scenes/ErrorExample.unity
3. Click on the Square image in the scene view a few times
- Note how rawType returns "used" instead of "mouseUp"
- Clicking on the Transform Gizmo produces the expected "mouseUp" result
- By Design:
- Event.rawType is an internal only property that we don't document (even though it's public).
- Its purpose is to return the non-filtered event type, regardless of the value of GUI.enabled. Event.type normally hide input event types and return EventType.Ignore when GUI.enabled is false when its queried.
- Event.rawType will not return the original EventType after calling Event.Use().