Steps to reproduce:
1. Download and open the attached project("CommandBufferBugProject.zip")
2. Enter Play mode

Expected result: sphere with an Overlay render queue should not be rendered in the render texture(quad)
Actual result: the sphere is still rendered

Reproduced with 5.4.5p1, 5.5.3p4, 5.6.1p3, 2017.1.0b8, 2017.2.0a3

Notes:
-The sphere's shader is set to render queue of 4000, and with CameraEvent set to BeforeImageEffects, it should not be rendered further
-The queue is ignored regardless of queue setting and corresponding camera event.