When executing the editor in batch mode having assigned a render texture to a camera as it's target setting that target to null does not unbind the texture set, preventing it from being used as an input in a later compute shader stage.

( Issue identified during investigation of https://fogbugz.unity3d.com/f/cases/1139556/ )

Steps to reproduce:
1. Download attached project
2. Open the project and comment the BakePVSScene.cs line 68 - "camera.targetTexture = renderTex2;"
3. Select int toolbar NewBorn -> BakeScene
4. Open "bake_static_pvs.log" in the project folder
5. Launch project in batch mode with "-quit -batchmode -executeMethod MoreFun.BakePVSSceneEditor.BakeSceneConfig" command

Expected results: ComputeBuffer return results in batch mode
Actual results: ComputeBuffer doesn't return results in batch mode

Reproduced in: 2019.2.0a11, 2018.3.12f1, 2017.4.25f1

If the baking script (BakePVSScene.cs) is modified so that line 68 after the call to camera.render() is uncommented, assigning a 2nd render texture to the camera, then the results are present as expected in the output text file.

Issue only presents in D3D11 mode; D3D11 debug runtime complains that a texture is bound for output already and thus will not bind it for input.
OpenGL functions fine.
D3D12 functions fine.

Mac in OpenGL mode works fine.
Metal is unknown at this time.