*Steps to reproduce:*
# Create and open an empty project and install com.unity.behavior
# Download and import the attached "repro.unitypackage"
# Open "scene"
# Enter play mode
# Observe the console

*Actual results:* The console prints "val 1"

*Expected results:* The console prints "val 2"

*Reproducible with versions:* 
1.0.8

*Tested on (OS):* MacOS

*Notes:*
* When modifying the "NewEnum" line from "Val1," to "Val1 = 1," I noticed that in the behavior agent component inspector the enum dropdown value was showing as empty.