Class diagram duplicates packaged interface when referenced from another package

Question

@startuml
package "App" as App {
  interface Interface
}

package "Adapters" as Adapters {
  class A implements Interface
  class B
}

B --> Interface
@enduml

results in duplicated Interface and concrete Interface

Answer 1

Duplicated of:

- https://forum.plantuml.net/20410/diagram-duplicates-packaged-interface-referenced-another