Why a static library cannot be linked to a framework but can be linked to an application?

[CarlitosDroid]

Background

I have the following structure:

1. CoreDomain target of type library.static.
2. MyApplication target of type application.
3. CoreData target of type framework.

When I link the static library to my MyApplication target with the following code:

dependencies:
      # Internal Dependencies
      - target: CoreDomain

It works fine and I see libCoreDomain.a in the Frameworks, Libraries and Embedded content section.

Problem

However, doing the same as above with CoreData framework, the libCoreDomain.a is not linked.

IMPORTANT

I can add the libCoreDomain.a manually to my framework, but not through xcodegen