Steps to reproduce:

1. Download and open the attached project "Behavior Event Duplicate Issue.zip"
2. Open the "Behavior Graph" asset
3. Duplicate the send event message node

Actual results: The values of the duplicated node are A, A, and Self, but when you focus out of the window, it is A, A, and None

Expected results: The values of the duplicated node are B, B, and Self, and when you focus out of the window, it is also B, B, and Self

Reproducible with versions: 
1.0.7
1.0.3

Not reproducible with versions: 
1.0.2

Tested on (OS): MacOS

Notes:

• Brought up in Discussions forum here