Artifacts appear in the game view when anti-aliasing set to 2.

Steps To Reproduce:

1. Create a project with LWRP template
2. Open the sample scene
3. Select the currently active render pipeline from the project window in the Settings folder
4. Change the anti-aliasing to 2.

Expected Result:
Edges become more jagged

Observed Result:

Artifacts appear in the scene view

Reproducible On: 2019.2.0a4, 2019.1.0b3, 2019.1.0a10

Not Reproducible On: 2019.1.0b9

Note:
1. It crashes for same package version 5.0.0(Default pkg) on 2019.1.0a9 but not on 2019.1.0a10. Please refer to the link below for the bug fixed on 2019.1.0b9

https://fogbugz.unity3d.com/f/cases/1095433/ bug was fixed on 2019.1.0ba9 for the same steps.

2. By default LWRP package version 5.0.0 is installed in a project while 5.2.3 is already available.

Environment:

Occurs only on Mac