Copying and pasting a material function renders all of the duplicates inputs as not having default values

The top material function was placed in a graph directly. The second was generating by copying the first node. Note that the input pins changed color which indicates that each input on the new module does not have an associated default value which is inaccurate. 

[Image Removed]

[Image Removed]

Copy a material function with an input parameter with a default value.

Edit: 1/15/2020

1.Download the Attached Sample Project, Launch UProject File

2.From Within the Content browser, double click on M_Test Material Node

3. Duplicate Material Function as indicated by comments, and the additional screenshot in the description.

Results: Nodes break their connection.

Expected: Nodes maintain their connection.