Equation Driven Curves with External References in Inserted Part

Referencing a global variable in an equation driven curve causes a build error when the sketch is inserted into another part via the "Insert Part" feature. 

Does anyone know how to get around this issue?

Edition: Solidworks 2018 SP 4

Resulting Error:

Steps to reproduce:

1) Create a part with a global variable 

2) Create a sketch with an equation driven curve and use the global ie: Y= "myGlobal"*x^2

          NOTE:  referencing the global indirectly through a dimension also causes the same issue. 

3) Save the part

4) In a new part, Insert > Part, include only unabsorbed sketches

5) Ctrl-Q

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