NavMeshAgent does not respect NavMesh after switching AgentType in playmode

To reproduce:
1. Open attached project
2. Open Untitled.scene
3. Enter Play mode
4. Change the AgentType on AgentSphere game object to Ogre
5. Move the Target around

Expected result: AgentSphere goes to target location
Actual result: It goes to semi random places

Screencast: http://screencast.com/t/bvkf5lFkd

Version of repro:
Version 5.4.0a5 (806f333a7d81) Personal
Mon, 30 Nov 2015 22:54:41 GMT
Branch: ai/navmesh/builder