Enable Emission to update at run time in editor 5.6.1?

I recently updated Unity from 5.5.2 to 5.6.1 since I started a new project and figured it would be a good time to do so.

In one of my scripts I had a blinking glow functions that adjusted the emission value to create the effect.

In 5.5.2 it worked in the editor without any special needs or anyt$$anonymous$$ng of that sort.

In 5.6.1, it no longer works in the editor by default and to get it to work in the editor I have to open up the material on the object in the inspector or put on a different shader on it w$$anonymous$$ch causes it to lose the texture reference until I open the material up in the inspector.

I read that I have to use enable keywords to get the materials to work right in the editor at run time but I haven't been able to find a reference to what keywords are available.