In a sequence diagram, should I not include the same file repeatedly?

In a sequence diagram, should I not include the same file repeatedly?

Alice has replied four times. But why does Bob hear only twice?

• Bob.sd.txt

@startuml
Bob -> Alice : Where are you? 1
Alice -> Bob : I'm here!

Bob -> Alice : Where are you? 2
!include Alice.replyToBob.sd.txt

Bob -> Alice : Where are you? 3
!include Alice.replyToBob.sd.txt

Bob -> Alice : Where are you? 4
!include Alice.replyToBob.sd.txt
@enduml

• Alice.replyToBob.sd.txt

Alice -> Bob : I'm here!

• Result

• Answer

!include_many  Alice.replyToBob.sd.txt