Dragging regular material onto a VFX graph will override its own material

Steps to reproduce:

1) Simply create a VFX graph in your scene and a material in asset browser

2) Drag and drop material onto the VFX asset

3) If you have mesh outputs observe how it overrides VFX's own material and breaks any particle positioning. 

 

Notes: Re-enabling VFX component or re-compile resolve the issue. Restarting graph doesn't.