Android : Samsung-knox LicenseManager.activateLicense trigger multiple responses

I have a knox activation key and I try to activate the license with the following code.

//EnterpriseLicenseManager is part of the samsung-knox api
EnterpriseLicenseManager.getInstance(context).activateLicense("<knox key here>");

This call will start an Activity to display the license text to the user with a "Confirm" and a "Cancel" button.

To get results of this license activation process I have a receiver (as recommended in the docs) :

<receiver android:name="com.company.LicenseReceiver">
    <intent-filter>
        <action android:name="edm.intent.action.license.status" />
    </intent-filter>
</receiver>

And the code :

@Override
public void onReceive(Context context, Intent intent) {

    Bundle extras = intent.getExtras();
    if ( extras != null ) {
        String status = extras.getString(EnterpriseLicenseManager.EXTRA_LICENSE_STATUS);
        int errorCode = extras.getInt(EnterpriseLicenseManager.EXTRA_LICENSE_ERROR_CODE);
        Toast.makeText(context, "License status :"+status+" - error:"+errorCode, Toast.LENGTH_LONG).show();
    }
    intent.getExtras();

}

I did some tests :

1. 
   

   accept the license. (I did this multiple times)

   
   

   Results : as expected a Toast with License status :success - error:0

   
   


2. 
   

   refuse the license

   
   

   Results : as expected a Toast with License status :fail - error:601

   
   

   (The knox doc indicate that error 601 means that "user refused the license")

   
   

So far so good, now I did a third test :

3. 
   

   accept the license.

   
   

   Results : a Toast with License status :success - error:0 and immediately after that : another Toast with License status :fail - error:601

   
   

It means that I receive 2 broadcasts : the first one indicating a success as expected and another one : obviously coming back from my test n°2.

I tried to reboot the device and then accept the license : same results (i.e. I receive 2 broadcasts)

Any one have an idea on how to get rid of this phantom broadcast ?