eabc8ad389
When an event type is registered, an exception is raised if the given event type is already registered. This has the unfortunate side-effect that if a plugin registers any event types, that plugin cannot be reloaded. The reason is that when a plugin is unloaded, its registered events are not unregistered. As a workaround for this, simply remove the check for duplicate event types. Long term we will need to find a way to make plugins remove their events from the list on unload. Bug: Issue 3301 Change-Id: I85e24f79ea4c901d5141dc9530dff0dc51ff4976