Maps of Wildcard type do not propagate values correctly when inside of macro

There is an issue with Maps of Wildcard type that do not propagate values correctly when inside of macro. When using these in a blueprint there are errors and the blueprint cannot compile. This issue does not appear to be a regression.

Versions Tested: Issue occurs in all versions tested
4.17.2 - CL: 3658906
4.18.1 - CL: 3754814
4.19.0 - CL: 3776583

1. Create a new project (no template or starter content needed)
2. Create a new macro library for actor class blueprints
3. In the new macro library create the blueprint from Screenshot_01
4. Save and close the macro blueprint
5. Create a new actor class blueprint > Name it "TestBP" > Open TestBP
6. In TestBP's event graph add the node from the macro library
7. Create a new map variable of pin type string and value type integer
8. Connect the map variable to the map icon in the macro node
   Result: In the macro node the value type will still be of type wildcard
   Expected result: In the macro node the maps value type would match the variable