NavHostFragment Manager backstack is not proper

Question

I am using navigation architecture component in my application.

Suppose I have fragment A as start destination. I have push fragment B and Fragment C via navigation controller.

My navigation back stack is A-> B-> C.

Then I navigate to Fragment A with below action

<action
        android:id="@+id/fragment_A_type"
        app:destination="@id/fragment_a"
        app:popUpTo="@id/fragment_a"
        app:popUpToInclusive="true" />

Now My navigation back stack should be A.

But if check parentFragmentManager.fragments back stack is A->A

Also the swipeBackDismiss of activity is not working.

my navigation.xml file

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/nav_graph">

    <fragment
        android:id="@+id/FirstFragment"
        android:name="com.example.wearexample1.FirstFragment"
        android:label="@string/first_fragment_label"
        tools:layout="@layout/fragment_first">

        <action
            android:id="@+id/action_FirstFragment_to_SecondFragment"
            app:destination="@id/SecondFragment" />
    </fragment>
    <fragment
        android:id="@+id/SecondFragment"
        android:name="com.example.wearexample1.SecondFragment"
        android:label="@string/second_fragment_label"
        tools:layout="@layout/fragment_second">
    </fragment>

    <action
        android:id="@+id/action_global_activity_type"
        app:destination="@id/FirstFragment"
        app:popUpTo="@id/FirstFragment"
        app:popUpToInclusive="true" />

</navigation>