Android let a library module depend on a certain flavor of another library module

Question

I'm building an SDK(not an app) with the following two library modules:

• :internalDep - has two flavors, f1 and f2 on dimension mydimen

• :publicModule - has dependency implementation project(":internalDep") with no flavor defined

Once released, 3 targets will be uploaded to maven central: com.my.site:internalDep-f1:0.1.2, com.my.site:internalDep-f2:0.1.2 and com.my.site:publicModule:0.1.2

Question: How to configure publicModule to use f1 by default so that when user declares dep on com.my.site:publicModule:0.1.2 they always also download com.my.site:internalDep-f1:0.1.2 ?

Note: The below config from this answer doesn't solve my issue, as it needs to be added to both publicModule and the client app, and I have no control over client app.

android {
  defaultConfig {
    missingDimensionStrategy 'myDimen', 'f1'
  }
}