title: Android Navigation Component pop to transition issue
body: <p>I have 2 actions </p>
  
  <p>Action1</p>
  
  <pre><code> &lt;action
          android:id="@+id/actionBaseFragmentToAskForLocation"
          app:destination="@+id/introAskForLocationFragment"
          app:enterAnim="@anim/slide_in_right"
          app:exitAnim="@anim/slide_out_left"
          app:popEnterAnim="@anim/slide_in_left"
          app:popExitAnim="@anim/slide_out_right" /&gt;
  </code></pre>
  
  <p>Action2</p>
  
  <pre><code>&lt;action
          android:id="@+id/actionIntroAskLocationToLogin"
          app:destination="@id/loginFragment"
          app:enterAnim="@anim/slide_in_right"
          app:exitAnim="@anim/slide_out_left"
          app:popEnterAnim="@anim/slide_in_right"
          app:popExitAnim="@anim/fade_out"
          app:popUpTo="@+id/app_main_navigation" /&gt;
  </code></pre>
  
  <p>What i want is when the second action is triggered i want to clear the back stack and set only loginFragment to remain in the stack.</p>
  
  <p>just one problem is when i perform the Action2, 'slide_out_right' is performed as exit animation</p>
  
  <p>I understand that if we pop the fragment from the stack the 'popExitAnim' of action1 will be triggered instead of 'exitAnim' of action2.</p>
  
  <p>but i want to know how can I make the fragment perform slide_out_left animation for exiting and also pop it out of the stack.</p>